318808 has 16 divisors (see below), whose sum is σ = 683280. Its totient is φ = 136608.

The previous prime is 318793. The next prime is 318809. The reversal of 318808 is 808813.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (318809) by changing a digit.

318808 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2791 + ... + 2902.

It is an arithmetic number, because the mean of its divisors is an integer number (42705).

2³¹⁸⁸⁰⁸ is an apocalyptic number.

It is an amenable number.

318808 is an abundant number, since it is smaller than the sum of its proper divisors (364472).

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

318808 is a wasteful number, since it uses less digits than its factorization.

318808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5706 (or 5702 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 318808 is about 564.6308528588. The cubic root of 318808 is about 68.3140033897.

The spelling of 318808 in words is "three hundred eighteen thousand, eight hundred eight".