328736994032 has 20 divisors (see below), whose sum is σ = 664620445200. Its totient is φ = 157222040448.

The previous prime is 328736994013. The next prime is 328736994043. The reversal of 328736994032 is 230499637823.

It is a happy number.

It is a super-2 number, since 2×328736994032² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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, 446653157 + ... + 446653892.

It is an arithmetic number, because the mean of its divisors is an integer number (33231022260).

Almost surely, 2^328736994032 is an apocalyptic number.

It is an amenable number.

328736994032 is an abundant number, since it is smaller than the sum of its proper divisors (335883451168).

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

328736994032 is a wasteful number, since it uses less digits than its factorization.

328736994032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 893307080 (or 893307074 counting only the distinct ones).

The product of its (nonzero) digits is 11757312, while the sum is 56.

The spelling of 328736994032 in words is "three hundred twenty-eight billion, seven hundred thirty-six million, nine hundred ninety-four thousand, thirty-two".