328765408 has 24 divisors (see below), whose sum is σ = 652361472. Its totient is φ = 163086336.

The previous prime is 328765399. The next prime is 328765439. The reversal of 328765408 is 804567823.

328765408 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 36385 + ... + 44512.

It is an arithmetic number, because the mean of its divisors is an integer number (27181728).

Almost surely, 2^328765408 is an apocalyptic number.

It is an amenable number.

328765408 is a deficient number, since it is larger than the sum of its proper divisors (323596064).

328765408 is a wasteful number, since it uses less digits than its factorization.

328765408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81034 (or 81026 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 43.

The square root of 328765408 is about 18131.8892562248. The cubic root of 328765408 is about 690.1794730227.

The spelling of 328765408 in words is "three hundred twenty-eight million, seven hundred sixty-five thousand, four hundred eight".