1390336968 has 16 divisors (see below), whose sum is σ = 3475842480. Its totient is φ = 463445648.

The previous prime is 1390336967. The next prime is 1390337009. The reversal of 1390336968 is 8696330931.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1390336963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28965330 + ... + 28965377.

It is an arithmetic number, because the mean of its divisors is an integer number (217240155).

Almost surely, 2^1390336968 is an apocalyptic number.

It is an amenable number.

1390336968 is an abundant number, since it is smaller than the sum of its proper divisors (2085505512).

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

1390336968 is a wasteful number, since it uses less digits than its factorization.

1390336968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57930716 (or 57930712 counting only the distinct ones).

The product of its (nonzero) digits is 629856, while the sum is 48.

The square root of 1390336968 is about 37287.2225836143. Note that the first 3 decimals coincide. The cubic root of 1390336968 is about 1116.1092055362.

The spelling of 1390336968 in words is "one billion, three hundred ninety million, three hundred thirty-six thousand, nine hundred sixty-eight".