1391562968 has 16 divisors (see below), whose sum is σ = 2693348160. Its totient is φ = 673336800.

The previous prime is 1391562929. The next prime is 1391563013. The reversal of 1391562968 is 8692651931.

It is a happy number.

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, 2805323 + ... + 2805818.

It is an arithmetic number, because the mean of its divisors is an integer number (168334260).

Almost surely, 2^1391562968 is an apocalyptic number.

It is an amenable number.

1391562968 is a deficient number, since it is larger than the sum of its proper divisors (1301785192).

1391562968 is a wasteful number, since it uses less digits than its factorization.

1391562968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5611178 (or 5611174 counting only the distinct ones).

The product of its digits is 699840, while the sum is 50.

The square root of 1391562968 is about 37303.6589090132. The cubic root of 1391562968 is about 1116.4371710847.

The spelling of 1391562968 in words is "one billion, three hundred ninety-one million, five hundred sixty-two thousand, nine hundred sixty-eight".