368518644 has 36 divisors (see below), whose sum is σ = 1003190916. Its totient is φ = 113390208.

The previous prime is 368518637. The next prime is 368518687. The reversal of 368518644 is 446815863.

It can be written as a sum of positive squares in 2 ways, for example, as 220166244 + 148352400 = 14838^2 + 12180^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 368518644.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 393249 + ... + 394184.

Almost surely, 2^368518644 is an apocalyptic number.

It is an amenable number.

368518644 is an abundant number, since it is smaller than the sum of its proper divisors (634672272).

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

368518644 is a wasteful number, since it uses less digits than its factorization.

368518644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 787456 (or 787451 counting only the distinct ones).

The product of its digits is 552960, while the sum is 45.

The square root of 368518644 is about 19196.8394273641. The cubic root of 368518644 is about 716.9460694834.

The spelling of 368518644 in words is "three hundred sixty-eight million, five hundred eighteen thousand, six hundred forty-four".