328371328 has 32 divisors (see below), whose sum is σ = 668108160. Its totient is φ = 160689408.

The previous prime is 328371289. The next prime is 328371341. The reversal of 328371328 is 823173823.

It is a tau number, because it is divible by the number of its divisors (32).

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, 21276 + ... + 33307.

It is an arithmetic number, because the mean of its divisors is an integer number (20878380).

Almost surely, 2^328371328 is an apocalyptic number.

It is an amenable number.

328371328 is an abundant number, since it is smaller than the sum of its proper divisors (339736832).

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

328371328 is an equidigital number, since it uses as much as digits as its factorization.

328371328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54644 (or 54632 counting only the distinct ones).

The product of its digits is 48384, while the sum is 37.

The square root of 328371328 is about 18121.0189558976. The cubic root of 328371328 is about 689.9035978181.

The spelling of 328371328 in words is "three hundred twenty-eight million, three hundred seventy-one thousand, three hundred twenty-eight".