328307956 has 24 divisors (see below), whose sum is σ = 610422120. Its totient is φ = 154207872.

The previous prime is 328307953. The next prime is 328307989. The reversal of 328307956 is 659703823.

It can be written as a sum of positive squares in 4 ways, for example, as 53875600 + 274432356 = 7340^2 + 16566^2 .

It is a super-2 number, since 2×328307956² = 215572227945795872, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328307953) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33955 + ... + 42538.

It is an arithmetic number, because the mean of its divisors is an integer number (25434255).

Almost surely, 2^328307956 is an apocalyptic number.

It is an amenable number.

328307956 is a deficient number, since it is larger than the sum of its proper divisors (282114164).

328307956 is a wasteful number, since it uses less digits than its factorization.

328307956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76563 (or 76561 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 43.

The square root of 328307956 is about 18119.2702943579. The cubic root of 328307956 is about 689.8592137323.

The spelling of 328307956 in words is "three hundred twenty-eight million, three hundred seven thousand, nine hundred fifty-six".