312320868 has 48 divisors (see below), whose sum is σ = 747700800. Its totient is φ = 101412864.

The previous prime is 312320857. The next prime is 312320927. The reversal of 312320868 is 868023213.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 297208 + ... + 298256.

It is an arithmetic number, because the mean of its divisors is an integer number (15577100).

Almost surely, 2^312320868 is an apocalyptic number.

It is an amenable number.

312320868 is an abundant number, since it is smaller than the sum of its proper divisors (435379932).

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

312320868 is a wasteful number, since it uses less digits than its factorization.

312320868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1676 (or 1674 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 312320868 is about 17672.6021853037. The cubic root of 312320868 is about 678.4747156170.

The spelling of 312320868 in words is "three hundred twelve million, three hundred twenty thousand, eight hundred sixty-eight".