318742684 has 12 divisors (see below), whose sum is σ = 600707464. Its totient is φ = 147111984.

The previous prime is 318742681. The next prime is 318742757. The reversal of 318742684 is 486247813.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 318742684.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (318742681) 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, 3064782 + ... + 3064885.

Almost surely, 2^318742684 is an apocalyptic number.

It is an amenable number.

318742684 is a deficient number, since it is larger than the sum of its proper divisors (281964780).

318742684 is a wasteful number, since it uses less digits than its factorization.

318742684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6129684 (or 6129682 counting only the distinct ones).

The product of its digits is 258048, while the sum is 43.

The square root of 318742684 is about 17853.3661811996. The cubic root of 318742684 is about 683.0933777882.

The spelling of 318742684 in words is "three hundred eighteen million, seven hundred forty-two thousand, six hundred eighty-four".