1390622956 has 6 divisors (see below), whose sum is σ = 2433590180. Its totient is φ = 695311476.

The previous prime is 1390622921. The next prime is 1390622963. The reversal of 1390622956 is 6592260931.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173827866 + ... + 173827873.

Almost surely, 2^1390622956 is an apocalyptic number.

It is an amenable number.

1390622956 is a deficient number, since it is larger than the sum of its proper divisors (1042967224).

1390622956 is a wasteful number, since it uses less digits than its factorization.

1390622956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347655743 (or 347655741 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 43.

The square root of 1390622956 is about 37291.0573194164. The cubic root of 1390622956 is about 1116.1857270231.

The spelling of 1390622956 in words is "one billion, three hundred ninety million, six hundred twenty-two thousand, nine hundred fifty-six".