1390862136 has 32 divisors (see below), whose sum is σ = 3478527360. Its totient is φ = 463437792.

The previous prime is 1390862131. The next prime is 1390862171. The reversal of 1390862136 is 6312680931.

It is a junction number, because it is equal to n+sod(n) for n = 1390862094 and 1390862103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1390862131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59691 + ... + 79653.

It is an arithmetic number, because the mean of its divisors is an integer number (108703980).

Almost surely, 2^1390862136 is an apocalyptic number.

It is an amenable number.

1390862136 is an abundant number, since it is smaller than the sum of its proper divisors (2087665224).

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

1390862136 is a wasteful number, since it uses less digits than its factorization.

1390862136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22875 (or 22871 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 1390862136 is about 37294.2641166172. The cubic root of 1390862136 is about 1116.2497160904.

The spelling of 1390862136 in words is "one billion, three hundred ninety million, eight hundred sixty-two thousand, one hundred thirty-six".