389715328 has 16 divisors (see below), whose sum is σ = 776386260. Its totient is φ = 194857600.

The previous prime is 389715299. The next prime is 389715331. The reversal of 389715328 is 823517983.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1522198 + ... + 1522453.

Almost surely, 2^389715328 is an apocalyptic number.

It is an amenable number.

389715328 is a deficient number, since it is larger than the sum of its proper divisors (386670932).

389715328 is an equidigital number, since it uses as much as digits as its factorization.

389715328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3044665 (or 3044653 counting only the distinct ones).

The product of its digits is 362880, while the sum is 46.

The square root of 389715328 is about 19741.2088788909. The cubic root of 389715328 is about 730.4365487946.

The spelling of 389715328 in words is "three hundred eighty-nine million, seven hundred fifteen thousand, three hundred twenty-eight".