1390736836 has 12 divisors (see below), whose sum is σ = 2437939728. Its totient is φ = 694182632.

The previous prime is 1390736827. The next prime is 1390736843. The reversal of 1390736836 is 6386370931.

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, 293806 + ... + 298501.

It is an arithmetic number, because the mean of its divisors is an integer number (203161644).

Almost surely, 2^1390736836 is an apocalyptic number.

It is an amenable number.

1390736836 is a deficient number, since it is larger than the sum of its proper divisors (1047202892).

1390736836 is a wasteful number, since it uses less digits than its factorization.

1390736836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592898 (or 592896 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 46.

The square root of 1390736836 is about 37292.5841957888. The cubic root of 1390736836 is about 1116.2161948458.

The spelling of 1390736836 in words is "one billion, three hundred ninety million, seven hundred thirty-six thousand, eight hundred thirty-six".