318800664 has 256 divisors, whose sum is σ = 1115520000. Its totient is φ = 83825280.

The previous prime is 318800623. The next prime is 318800689. The reversal of 318800664 is 466008813.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 962979 + ... + 963309.

It is an arithmetic number, because the mean of its divisors is an integer number (4357500).

Almost surely, 2^318800664 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 318800664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (557760000).

318800664 is an abundant number, since it is smaller than the sum of its proper divisors (796719336).

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

318800664 is a wasteful number, since it uses less digits than its factorization.

318800664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380 (or 356 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 318800664 is about 17854.9898907840. The cubic root of 318800664 is about 683.1347940097.

The spelling of 318800664 in words is "three hundred eighteen million, eight hundred thousand, six hundred sixty-four".