4432 McGraw-Hill, provisional designation 1981 ER₂₂, is a background asteroid from the inner regions of the asteroid belt, approximately 3 kilometers (2 miles) in diameter. It was discovered on 2 March 1981, by American astronomer Schelte Bus at the Siding Spring Observatory in Australia. The likely S-type asteroid was named for the McGraw-Hill Telescope located at Kitt Peak, Arizona.^[1]

McGraw-Hill is a non-family asteroid from the main belt's background population.^[4] It orbits the Sun in the inner asteroid belt at a distance of 1.9–2.9 AU once every 3 years and 8 months (1,346 days; semi-major axis of 2.39 AU). Its orbit has an eccentricity of 0.21 and an inclination of 0° with respect to the ecliptic.^[2]

The asteroid was first observed as 1964 TV at Purple Mountain Observatory in October 1964. The body's observation arc begins with a precovery taken at Palomar Observatory in February 1977, or four years prior to its official discovery observation at Siding Spring.^[1]

McGraw-Hill is an assumed, stony S-type asteroid,^[3] in agreement with the albedo (see below) obtained by the Wide-field Infrared Survey Explorer (WISE).

This minor planet was named after the 1.3-meter McGraw-Hill Telescope located at the MDM Observatory at the Kitt Peak National Observatory site in Arizona, United States.^[1] The official naming citation was published by the Minor Planet Center on 18 February 1992 (M.P.C. 19697).^[8]