389075028 has 48 divisors (see below), whose sum is σ = 932541120. Its totient is φ = 126208000.

The previous prime is 389075023. The next prime is 389075047. The reversal of 389075028 is 820570983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389075021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68788 + ... + 74228.

It is an arithmetic number, because the mean of its divisors is an integer number (19427940).

Almost surely, 2^389075028 is an apocalyptic number.

It is an amenable number.

389075028 is an abundant number, since it is smaller than the sum of its proper divisors (543466092).

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

389075028 is a wasteful number, since it uses less digits than its factorization.

389075028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5608 (or 5606 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 389075028 is about 19724.9848669143. The cubic root of 389075028 is about 730.0362951867.

The spelling of 389075028 in words is "three hundred eighty-nine million, seventy-five thousand, twenty-eight".