328064388 has 12 divisors (see below), whose sum is σ = 765483600. Its totient is φ = 109354792.

The previous prime is 328064381. The next prime is 328064417. The reversal of 328064388 is 883460823.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (328064381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13669338 + ... + 13669361.

It is an arithmetic number, because the mean of its divisors is an integer number (63790300).

Almost surely, 2^328064388 is an apocalyptic number.

It is an amenable number.

328064388 is an abundant number, since it is smaller than the sum of its proper divisors (437419212).

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

328064388 is a wasteful number, since it uses less digits than its factorization.

328064388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27338706 (or 27338704 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 42.

The square root of 328064388 is about 18112.5478053199. The cubic root of 328064388 is about 689.6885719150.

The spelling of 328064388 in words is "three hundred twenty-eight million, sixty-four thousand, three hundred eighty-eight".