1389966792 has 16 divisors (see below), whose sum is σ = 3474917040. Its totient is φ = 463322256.

The previous prime is 1389966763. The next prime is 1389966829. The reversal of 1389966792 is 2976699831.

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, 28957618 + ... + 28957665.

It is an arithmetic number, because the mean of its divisors is an integer number (217182315).

Almost surely, 2^1389966792 is an apocalyptic number.

1389966792 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1389966792 is an abundant number, since it is smaller than the sum of its proper divisors (2084950248).

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

1389966792 is a wasteful number, since it uses less digits than its factorization.

1389966792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57915292 (or 57915288 counting only the distinct ones).

The product of its digits is 8817984, while the sum is 60.

The square root of 1389966792 is about 37282.2584079881. The cubic root of 1389966792 is about 1116.0101423777.

The spelling of 1389966792 in words is "one billion, three hundred eighty-nine million, nine hundred sixty-six thousand, seven hundred ninety-two".