318356444 has 24 divisors (see below), whose sum is σ = 643022688. Its totient is φ = 135086400.

The previous prime is 318356429. The next prime is 318356447. The reversal of 318356444 is 444653813.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 318356398 and 318356407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (318356447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53459 + ... + 59114.

It is an arithmetic number, because the mean of its divisors is an integer number (26792612).

Almost surely, 2^318356444 is an apocalyptic number.

It is an amenable number.

318356444 is an abundant number, since it is smaller than the sum of its proper divisors (324666244).

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

318356444 is a wasteful number, since it uses less digits than its factorization.

318356444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112685 (or 112683 counting only the distinct ones).

The product of its digits is 138240, while the sum is 38.

The square root of 318356444 is about 17842.5458945746. The cubic root of 318356444 is about 682.8173509272.

The spelling of 318356444 in words is "three hundred eighteen million, three hundred fifty-six thousand, four hundred forty-four".