1397892488 has 16 divisors (see below), whose sum is σ = 2621850000. Its totient is φ = 698732496.

The previous prime is 1397892469. The next prime is 1397892493. The reversal of 1397892488 is 8842987931.

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, 3023 + ... + 52961.

It is an arithmetic number, because the mean of its divisors is an integer number (163865625).

Almost surely, 2^1397892488 is an apocalyptic number.

It is an amenable number.

1397892488 is a deficient number, since it is larger than the sum of its proper divisors (1223957512).

1397892488 is a wasteful number, since it uses less digits than its factorization.

1397892488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53444 (or 53440 counting only the distinct ones).

The product of its digits is 6967296, while the sum is 59.

The square root of 1397892488 is about 37388.4004471975. The cubic root of 1397892488 is about 1118.1273148428.

The spelling of 1397892488 in words is "one billion, three hundred ninety-seven million, eight hundred ninety-two thousand, four hundred eighty-eight".