501156642 has 16 divisors (see below), whose sum is σ = 1145500992. Its totient is φ = 143187600.

The previous prime is 501156641. The next prime is 501156659. The reversal of 501156642 is 246651105.

It is not an unprimeable number, because it can be changed into a prime (501156641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5966109 + ... + 5966192.

It is an arithmetic number, because the mean of its divisors is an integer number (71593812).

Almost surely, 2^501156642 is an apocalyptic number.

501156642 is an abundant number, since it is smaller than the sum of its proper divisors (644344350).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

501156642 is a wasteful number, since it uses less digits than its factorization.

501156642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11932313.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 501156642 is about 22386.5281363592. The cubic root of 501156642 is about 794.3120729082.

The spelling of 501156642 in words is "five hundred one million, one hundred fifty-six thousand, six hundred forty-two".