1390507612 has 12 divisors (see below), whose sum is σ = 2620572136. Its totient is φ = 641772720.

The previous prime is 1390507607. The next prime is 1390507637. The reversal of 1390507612 is 2167050931.

It is a super-2 number, since 2×1390507612² = 3867022838059885088, which contains 22 as substring.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

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, 13370214 + ... + 13370317.

Almost surely, 2^1390507612 is an apocalyptic number.

It is an amenable number.

1390507612 is a deficient number, since it is larger than the sum of its proper divisors (1230064524).

1390507612 is a wasteful number, since it uses less digits than its factorization.

1390507612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26740548 (or 26740546 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 34.

The square root of 1390507612 is about 37289.5107503437. The cubic root of 1390507612 is about 1116.1548658215.

The spelling of 1390507612 in words is "one billion, three hundred ninety million, five hundred seven thousand, six hundred twelve".