318399464 has 16 divisors (see below), whose sum is σ = 602477700. Its totient is φ = 157738752.

The previous prime is 318399457. The next prime is 318399469. The reversal of 318399464 is 464993813.

It is a happy number.

318399464 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 318336964 + 62500 = 17842^2 + 250^2 .

It is not an unprimeable number, because it can be changed into a prime (318399469) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181697 + ... + 183440.

Almost surely, 2^318399464 is an apocalyptic number.

It is an amenable number.

318399464 is a deficient number, since it is larger than the sum of its proper divisors (284078236).

318399464 is a wasteful number, since it uses less digits than its factorization.

318399464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365252 (or 365248 counting only the distinct ones).

The product of its digits is 559872, while the sum is 47.

The square root of 318399464 is about 17843.7513992994. The cubic root of 318399464 is about 682.8481062644.

The spelling of 318399464 in words is "three hundred eighteen million, three hundred ninety-nine thousand, four hundred sixty-four".