307328928 has 48 divisors (see below), whose sum is σ = 814597056. Its totient is φ = 101445120.

The previous prime is 307328909. The next prime is 307328929. The reversal of 307328928 is 829823703.

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 307328928.

It is not an unprimeable number, because it can be changed into a prime (307328929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5653 + ... + 25428.

It is an arithmetic number, because the mean of its divisors is an integer number (16970772).

Almost surely, 2^307328928 is an apocalyptic number.

It is an amenable number.

307328928 is an abundant number, since it is smaller than the sum of its proper divisors (507268128).

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

307328928 is a wasteful number, since it uses less digits than its factorization.

307328928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31197 (or 31189 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 307328928 is about 17530.7994113218. The cubic root of 307328928 is about 674.8405132116.

The spelling of 307328928 in words is "three hundred seven million, three hundred twenty-eight thousand, nine hundred twenty-eight".