315628 has 12 divisors (see below), whose sum is σ = 581560. Its totient is φ = 149472.

The previous prime is 315617. The next prime is 315631. The reversal of 315628 is 826513.

It is a happy number.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 315628.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2001 + ... + 2152.

2³¹⁵⁶²⁸ is an apocalyptic number.

315628 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

315628 is a deficient number, since it is larger than the sum of its proper divisors (265932).

315628 is a wasteful number, since it uses less digits than its factorization.

315628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4176 (or 4174 counting only the distinct ones).

The product of its digits is 1440, while the sum is 25.

The square root of 315628 is about 561.8077963147. The cubic root of 315628 is about 68.0861077562.

The spelling of 315628 in words is "three hundred fifteen thousand, six hundred twenty-eight".