315491464 has 32 divisors (see below), whose sum is σ = 631699200. Its totient is φ = 147389760.

The previous prime is 315491461. The next prime is 315491471. The reversal of 315491464 is 464194513.

It is not an unprimeable number, because it can be changed into a prime (315491461) 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, 14742 + ... + 29125.

It is an arithmetic number, because the mean of its divisors is an integer number (19740600).

Almost surely, 2^315491464 is an apocalyptic number.

It is an amenable number.

315491464 is an abundant number, since it is smaller than the sum of its proper divisors (316207736).

315491464 is a wasteful number, since it uses less digits than its factorization.

315491464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43933 (or 43929 counting only the distinct ones).

The product of its digits is 51840, while the sum is 37.

The square root of 315491464 is about 17762.0793827750. The cubic root of 315491464 is about 680.7628865948.

The spelling of 315491464 in words is "three hundred fifteen million, four hundred ninety-one thousand, four hundred sixty-four".