389039136 has 48 divisors (see below), whose sum is σ = 1074981600. Its totient is φ = 122853888.

The previous prime is 389039107. The next prime is 389039153. The reversal of 389039136 is 631930983.

It is a tau number, because it is divible by the number of its divisors (48).

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, 104821 + ... + 108468.

It is an arithmetic number, because the mean of its divisors is an integer number (22395450).

Almost surely, 2^389039136 is an apocalyptic number.

It is an amenable number.

389039136 is an abundant number, since it is smaller than the sum of its proper divisors (685942464).

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

389039136 is a wasteful number, since it uses less digits than its factorization.

389039136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213321 (or 213313 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 42.

The square root of 389039136 is about 19724.0750353470. The cubic root of 389039136 is about 730.0138459875.

The spelling of 389039136 in words is "three hundred eighty-nine million, thirty-nine thousand, one hundred thirty-six".