315868 has 24 divisors (see below), whose sum is σ = 655200. Its totient is φ = 130368.

The previous prime is 315857. The next prime is 315881. The reversal of 315868 is 868513.

It is a congruent number.

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, 618 + ... + 1006.

It is an arithmetic number, because the mean of its divisors is an integer number (27300).

2³¹⁵⁸⁶⁸ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 315868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (327600).

315868 is an abundant number, since it is smaller than the sum of its proper divisors (339332).

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

315868 is a wasteful number, since it uses less digits than its factorization.

315868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429 (or 427 counting only the distinct ones).

The product of its digits is 5760, while the sum is 31.

The square root of 315868 is about 562.0213519076. The cubic root of 315868 is about 68.1033606888.

The spelling of 315868 in words is "three hundred fifteen thousand, eight hundred sixty-eight".