318444402 has 8 divisors (see below), whose sum is σ = 636888816. Its totient is φ = 106148132.

The previous prime is 318444359. The next prime is 318444409. The reversal of 318444402 is 204444813.

It is a sphenic number, since it is the product of 3 distinct primes.

318444402 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 318444402.

It is not an unprimeable number, because it can be changed into a prime (318444409) 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, 26537028 + ... + 26537039.

It is an arithmetic number, because the mean of its divisors is an integer number (79611102).

Almost surely, 2^318444402 is an apocalyptic number.

318444402 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

318444402 is a wasteful number, since it uses less digits than its factorization.

318444402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53074072.

The product of its (nonzero) digits is 12288, while the sum is 30.

The square root of 318444402 is about 17845.0105631798. The cubic root of 318444402 is about 682.8802298368.

It can be divided in two parts, 3184 and 44402, that added together give a triangular number (47586 = T₃₀₈).

The spelling of 318444402 in words is "three hundred eighteen million, four hundred forty-four thousand, four hundred two".