320528328 has 32 divisors (see below), whose sum is σ = 843496800. Its totient is φ = 101219328.

The previous prime is 320528317. The next prime is 320528333. The reversal of 320528328 is 823825023.

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, 351001 + ... + 351912.

It is an arithmetic number, because the mean of its divisors is an integer number (26359275).

Almost surely, 2^320528328 is an apocalyptic number.

320528328 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

320528328 is an abundant number, since it is smaller than the sum of its proper divisors (522968472).

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

320528328 is a wasteful number, since it uses less digits than its factorization.

320528328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702941 (or 702937 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 320528328 is about 17903.3049462941. The cubic root of 320528328 is about 684.3666001012.

The spelling of 320528328 in words is "three hundred twenty million, five hundred twenty-eight thousand, three hundred twenty-eight".