389009136 has 40 divisors (see below), whose sum is σ = 1006195024. Its totient is φ = 129507840.

The previous prime is 389009123. The next prime is 389009141. The reversal of 389009136 is 631900983.

It is a junction number, because it is equal to n+sod(n) for n = 389009094 and 389009103.

It is a congruent number.

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, 37476 + ... + 46716.

Almost surely, 2^389009136 is an apocalyptic number.

It is an amenable number.

389009136 is an abundant number, since it is smaller than the sum of its proper divisors (617185888).

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

389009136 is a wasteful number, since it uses less digits than its factorization.

389009136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10129 (or 10123 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 39.

The square root of 389009136 is about 19723.3145287500. The cubic root of 389009136 is about 729.9950809702.

The spelling of 389009136 in words is "three hundred eighty-nine million, nine thousand, one hundred thirty-six".