389157036 has 12 divisors (see below), whose sum is σ = 908033112. Its totient is φ = 129719008.

The previous prime is 389157029. The next prime is 389157053. The reversal of 389157036 is 630751983.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16214865 + ... + 16214888.

It is an arithmetic number, because the mean of its divisors is an integer number (75669426).

Almost surely, 2^389157036 is an apocalyptic number.

It is an amenable number.

389157036 is an abundant number, since it is smaller than the sum of its proper divisors (518876076).

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

389157036 is a wasteful number, since it uses less digits than its factorization.

389157036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32429760 (or 32429758 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 42.

The square root of 389157036 is about 19727.0635422508. The cubic root of 389157036 is about 730.0875831615.

The spelling of 389157036 in words is "three hundred eighty-nine million, one hundred fifty-seven thousand, thirty-six".