1272918232 has 16 divisors (see below), whose sum is σ = 2425849200. Its totient is φ = 626025120.

The previous prime is 1272918221. The next prime is 1272918307. The reversal of 1272918232 is 2328192721.

It is a junction number, because it is equal to n+sod(n) for n = 1272918191 and 1272918200.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1303732 + ... + 1304707.

It is an arithmetic number, because the mean of its divisors is an integer number (151615575).

Almost surely, 2^1272918232 is an apocalyptic number.

It is an amenable number.

1272918232 is a deficient number, since it is larger than the sum of its proper divisors (1152930968).

1272918232 is a wasteful number, since it uses less digits than its factorization.

1272918232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2608506 (or 2608502 counting only the distinct ones).

The product of its digits is 24192, while the sum is 37.

The square root of 1272918232 is about 35677.9796513199. The cubic root of 1272918232 is about 1083.7609595325.

The spelling of 1272918232 in words is "one billion, two hundred seventy-two million, nine hundred eighteen thousand, two hundred thirty-two".