1390072312 has 32 divisors (see below), whose sum is σ = 2709900000. Its totient is φ = 667675008.

The previous prime is 1390072267. The next prime is 1390072339. The reversal of 1390072312 is 2132700931.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31114 + ... + 61222.

It is an arithmetic number, because the mean of its divisors is an integer number (84684375).

Almost surely, 2^1390072312 is an apocalyptic number.

It is an amenable number.

1390072312 is a deficient number, since it is larger than the sum of its proper divisors (1319827688).

1390072312 is a wasteful number, since it uses less digits than its factorization.

1390072312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30343 (or 30339 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 1390072312 is about 37283.6735314534. The cubic root of 1390072312 is about 1116.0383824794.

The spelling of 1390072312 in words is "one billion, three hundred ninety million, seventy-two thousand, three hundred twelve".