318724 has 12 divisors (see below), whose sum is σ = 637504. Its totient is φ = 136584.

The previous prime is 318713. The next prime is 318737. The reversal of 318724 is 427813.

318724 is an admirable 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 a nialpdrome in base 14.

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, 5664 + ... + 5719.

2³¹⁸⁷²⁴ is an apocalyptic number.

It is an amenable number.

318724 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

318724 is a wasteful number, since it uses less digits than its factorization.

318724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11394 (or 11392 counting only the distinct ones).

The product of its digits is 1344, while the sum is 25.

The square root of 318724 is about 564.5564630752. The cubic root of 318724 is about 68.3080030380.

The spelling of 318724 in words is "three hundred eighteen thousand, seven hundred twenty-four".