1397662512 has 20 divisors (see below), whose sum is σ = 3610628280. Its totient is φ = 465887488.

The previous prime is 1397662499. The next prime is 1397662601. The reversal of 1397662512 is 2152667931.

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, 14558937 + ... + 14559032.

It is an arithmetic number, because the mean of its divisors is an integer number (180531414).

Almost surely, 2^1397662512 is an apocalyptic number.

1397662512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1397662512 is an abundant number, since it is smaller than the sum of its proper divisors (2212965768).

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

1397662512 is a wasteful number, since it uses less digits than its factorization.

1397662512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29117980 (or 29117974 counting only the distinct ones).

The product of its digits is 136080, while the sum is 42.

The square root of 1397662512 is about 37385.3248213788. The cubic root of 1397662512 is about 1118.0659947837.

The spelling of 1397662512 in words is "one billion, three hundred ninety-seven million, six hundred sixty-two thousand, five hundred twelve".