389963868 has 48 divisors (see below), whose sum is σ = 1068017664. Its totient is φ = 108406080.

The previous prime is 389963857. The next prime is 389963869. The reversal of 389963868 is 868369983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389963869) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59628 + ... + 65843.

It is an arithmetic number, because the mean of its divisors is an integer number (22250368).

Almost surely, 2^389963868 is an apocalyptic number.

It is an amenable number.

389963868 is an abundant number, since it is smaller than the sum of its proper divisors (678053796).

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

389963868 is a wasteful number, since it uses less digits than its factorization.

389963868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125522 (or 125520 counting only the distinct ones).

The product of its digits is 13436928, while the sum is 60.

The square root of 389963868 is about 19747.5028294719. The cubic root of 389963868 is about 730.5917938394.

The spelling of 389963868 in words is "three hundred eighty-nine million, nine hundred sixty-three thousand, eight hundred sixty-eight".