1392910872 has 16 divisors (see below), whose sum is σ = 3482277240. Its totient is φ = 464303616.

The previous prime is 1392910867. The next prime is 1392910901. The reversal of 1392910872 is 2780192931.

It is a congruent number.

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, 29018953 + ... + 29019000.

Almost surely, 2^1392910872 is an apocalyptic number.

1392910872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1392910872 is an abundant number, since it is smaller than the sum of its proper divisors (2089366368).

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

1392910872 is a wasteful number, since it uses less digits than its factorization.

1392910872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58037962 (or 58037958 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 42.

The square root of 1392910872 is about 37321.7211821749. The cubic root of 1392910872 is about 1116.7975247651.

The spelling of 1392910872 in words is "one billion, three hundred ninety-two million, nine hundred ten thousand, eight hundred seventy-two".