318382864 has 10 divisors (see below), whose sum is σ = 616866830. Its totient is φ = 159191424.

The previous prime is 318382849. The next prime is 318382873. The reversal of 318382864 is 468283813.

It can be written as a sum of positive squares in only one way, i.e., 300675600 + 17707264 = 17340^2 + 4208^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 318382864.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9949449 + ... + 9949480.

It is an arithmetic number, because the mean of its divisors is an integer number (61686683).

Almost surely, 2^318382864 is an apocalyptic number.

It is an amenable number.

318382864 is a deficient number, since it is larger than the sum of its proper divisors (298483966).

318382864 is a wasteful number, since it uses less digits than its factorization.

318382864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19898937 (or 19898931 counting only the distinct ones).

The product of its digits is 221184, while the sum is 43.

The square root of 318382864 is about 17843.2862444114. The cubic root of 318382864 is about 682.8362391218.

The spelling of 318382864 in words is "three hundred eighteen million, three hundred eighty-two thousand, eight hundred sixty-four".