320863404 has 12 divisors (see below), whose sum is σ = 748681304. Its totient is φ = 106954464.

The previous prime is 320863391. The next prime is 320863427. The reversal of 320863404 is 404368023.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13369297 + ... + 13369320.

Almost surely, 2^320863404 is an apocalyptic number.

It is an amenable number.

320863404 is an abundant number, since it is smaller than the sum of its proper divisors (427817900).

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

320863404 is a wasteful number, since it uses less digits than its factorization.

320863404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26738624 (or 26738622 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 320863404 is about 17912.6604389186. The cubic root of 320863404 is about 684.6049929272.

The spelling of 320863404 in words is "three hundred twenty million, eight hundred sixty-three thousand, four hundred four".