501939216 has 45 divisors (see below), whose sum is σ = 1405485471. Its totient is φ = 167223456.

The previous prime is 501939209. The next prime is 501939233. The reversal of 501939216 is 612939105.

The square root of 501939216 is 22404.

It is a perfect power (a square), and thus also a powerful number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 267915 + ... + 269781.

Almost surely, 2^501939216 is an apocalyptic number.

501939216 is the 22404-th square number.

It is an amenable number.

501939216 is an abundant number, since it is smaller than the sum of its proper divisors (903546255).

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

501939216 is an equidigital number, since it uses as much as digits as its factorization.

501939216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3748 (or 1872 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 36.

The cubic root of 501939216 is about 794.7253067823.

Multiplying 501939216 by its sum of digits (36), we get a square (18069811776 = 134424²).

501939216 divided by its sum of digits (36) gives a square (13942756 = 3734²).

The spelling of 501939216 in words is "five hundred one million, nine hundred thirty-nine thousand, two hundred sixteen".