311625968 has 10 divisors (see below), whose sum is σ = 603775344. Its totient is φ = 155812976.

The previous prime is 311625959. The next prime is 311625971. The reversal of 311625968 is 869526113.

It is a super-2 number, since 2×311625968² = 194221487863874048, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9738296 + ... + 9738327.

Almost surely, 2^311625968 is an apocalyptic number.

It is an amenable number.

311625968 is a deficient number, since it is larger than the sum of its proper divisors (292149376).

311625968 is a wasteful number, since it uses less digits than its factorization.

311625968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19476631 (or 19476625 counting only the distinct ones).

The product of its digits is 77760, while the sum is 41.

The square root of 311625968 is about 17652.9308614745. The cubic root of 311625968 is about 677.9711499690.

The spelling of 311625968 in words is "three hundred eleven million, six hundred twenty-five thousand, nine hundred sixty-eight".