389230856 has 32 divisors (see below), whose sum is σ = 838044480. Its totient is φ = 166017600.

The previous prime is 389230819. The next prime is 389230913. The reversal of 389230856 is 658032983.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4655 + ... + 28286.

It is an arithmetic number, because the mean of its divisors is an integer number (26188890).

Almost surely, 2^389230856 is an apocalyptic number.

It is an amenable number.

389230856 is an abundant number, since it is smaller than the sum of its proper divisors (448813624).

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

389230856 is a wasteful number, since it uses less digits than its factorization.

389230856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33165 (or 33161 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 44.

The square root of 389230856 is about 19728.9344871942. The cubic root of 389230856 is about 730.1337441821.

The spelling of 389230856 in words is "three hundred eighty-nine million, two hundred thirty thousand, eight hundred fifty-six".