323805978 has 16 divisors (see below), whose sum is σ = 719568960. Its totient is φ = 107935308.

The previous prime is 323805947. The next prime is 323806001. The reversal of 323805978 is 879508323.

It is a super-2 number, since 2×323805978² = 209700622777072968, which contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2998150 + ... + 2998257.

It is an arithmetic number, because the mean of its divisors is an integer number (44973060).

Almost surely, 2^323805978 is an apocalyptic number.

323805978 is an abundant number, since it is smaller than the sum of its proper divisors (395762982).

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

323805978 is a wasteful number, since it uses less digits than its factorization.

323805978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5996418 (or 5996412 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 323805978 is about 17994.6096929053. The cubic root of 323805978 is about 686.6914195474.

The spelling of 323805978 in words is "three hundred twenty-three million, eight hundred five thousand, nine hundred seventy-eight".