389927912 has 32 divisors (see below), whose sum is σ = 844499520. Its totient is φ = 166813440.

The previous prime is 389927911. The next prime is 389927927. The reversal of 389927912 is 219729983.

It is not an unprimeable number, because it can be changed into a prime (389927911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128828 + ... + 131819.

It is an arithmetic number, because the mean of its divisors is an integer number (26390610).

Almost surely, 2^389927912 is an apocalyptic number.

It is an amenable number.

389927912 is an abundant number, since it is smaller than the sum of its proper divisors (454571608).

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

389927912 is a wasteful number, since it uses less digits than its factorization.

389927912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260681 (or 260677 counting only the distinct ones).

The product of its digits is 489888, while the sum is 50.

The square root of 389927912 is about 19746.5924148953. The cubic root of 389927912 is about 730.5693387967.

The spelling of 389927912 in words is "three hundred eighty-nine million, nine hundred twenty-seven thousand, nine hundred twelve".