318880400444 has 12 divisors (see below), whose sum is σ = 558477703224. Its totient is φ = 159315342384.

The previous prime is 318880400441. The next prime is 318880400453. The reversal of 318880400444 is 444004088813.

It is a junction number, because it is equal to n+sod(n) for n = 318880400395 and 318880400404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (318880400441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31208714 + ... + 31218929.

It is an arithmetic number, because the mean of its divisors is an integer number (46539808602).

Almost surely, 2^318880400444 is an apocalyptic number.

It is an amenable number.

318880400444 is a deficient number, since it is larger than the sum of its proper divisors (239597302780).

318880400444 is a wasteful number, since it uses less digits than its factorization.

318880400444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62428924 (or 62428922 counting only the distinct ones).

The product of its (nonzero) digits is 393216, while the sum is 44.

The spelling of 318880400444 in words is "three hundred eighteen billion, eight hundred eighty million, four hundred thousand, four hundred forty-four".