318091968 has 56 divisors (see below), whose sum is σ = 935136560. Its totient is φ = 106030080.

The previous prime is 318091957. The next prime is 318092009. The reversal of 318091968 is 869190813.

It is a super-2 number, since 2×318091968² = 202365000212226048, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90313 + ... + 93768.

Almost surely, 2^318091968 is an apocalyptic number.

It is an amenable number.

318091968 is an abundant number, since it is smaller than the sum of its proper divisors (617044592).

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

318091968 is a wasteful number, since it uses less digits than its factorization.

318091968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184102 (or 184086 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 45.

The square root of 318091968 is about 17835.1329683857. The cubic root of 318091968 is about 682.6282140478.

The spelling of 318091968 in words is "three hundred eighteen million, ninety-one thousand, nine hundred sixty-eight".