315656478 has 48 divisors (see below), whose sum is σ = 698686560. Its totient is φ = 102972672.

The previous prime is 315656447. The next prime is 315656491. The reversal of 315656478 is 874656513.

315656478 is a `hidden beast` number, since 3 + 15 + 6 + 564 + 78 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 164050 + ... + 165962.

It is an arithmetic number, because the mean of its divisors is an integer number (14555970).

Almost surely, 2^315656478 is an apocalyptic number.

315656478 is an abundant number, since it is smaller than the sum of its proper divisors (383030082).

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

315656478 is a wasteful number, since it uses less digits than its factorization.

315656478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2113 (or 2110 counting only the distinct ones).

The product of its digits is 604800, while the sum is 45.

The square root of 315656478 is about 17766.7238960929. The cubic root of 315656478 is about 680.8815541767.

The spelling of 315656478 in words is "three hundred fifteen million, six hundred fifty-six thousand, four hundred seventy-eight".