1272392968 has 32 divisors (see below), whose sum is σ = 2974426560. Its totient is φ = 495737280.

The previous prime is 1272392939. The next prime is 1272392971. The reversal of 1272392968 is 8692932721.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1032171 + ... + 1033402.

It is an arithmetic number, because the mean of its divisors is an integer number (92950830).

Almost surely, 2^1272392968 is an apocalyptic number.

It is an amenable number.

1272392968 is an abundant number, since it is smaller than the sum of its proper divisors (1702033592).

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

1272392968 is a wasteful number, since it uses less digits than its factorization.

1272392968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2065597 (or 2065593 counting only the distinct ones).

The product of its digits is 653184, while the sum is 49.

The square root of 1272392968 is about 35670.6177126217. The cubic root of 1272392968 is about 1083.6118693235.

The spelling of 1272392968 in words is "one billion, two hundred seventy-two million, three hundred ninety-two thousand, nine hundred sixty-eight".