389204928 has 168 divisors, whose sum is σ = 1291425408. Its totient is φ = 109767168.

The previous prime is 389204899. The next prime is 389204941. The reversal of 389204928 is 829402983.

It is a tau number, because it is divible by the number of its divisors (168).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 334075 + ... + 335237.

It is an arithmetic number, because the mean of its divisors is an integer number (7687056).

Almost surely, 2^389204928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 389204928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (645712704).

389204928 is an abundant number, since it is smaller than the sum of its proper divisors (902220480).

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

389204928 is a wasteful number, since it uses less digits than its factorization.

389204928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1271 (or 1258 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 389204928 is about 19728.2773703129. The cubic root of 389204928 is about 730.1175315859.

The spelling of 389204928 in words is "three hundred eighty-nine million, two hundred four thousand, nine hundred twenty-eight".