331872904 has 32 divisors (see below), whose sum is σ = 679530240. Its totient is φ = 150696000.

The previous prime is 331872899. The next prime is 331872907. The reversal of 331872904 is 409278133.

It is a super-2 number, since 2×331872904² = 220279248818786432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (331872907) 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, 169129 + ... + 171079.

It is an arithmetic number, because the mean of its divisors is an integer number (21235320).

Almost surely, 2^331872904 is an apocalyptic number.

It is an amenable number.

331872904 is an abundant number, since it is smaller than the sum of its proper divisors (347657336).

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

331872904 is a wasteful number, since it uses less digits than its factorization.

331872904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3901 (or 3897 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 331872904 is about 18217.3791748429. The cubic root of 331872904 is about 692.3471867586.

The spelling of 331872904 in words is "three hundred thirty-one million, eight hundred seventy-two thousand, nine hundred four".