1296708272 has 20 divisors (see below), whose sum is σ = 2529015216. Its totient is φ = 644059200.

The previous prime is 1296708251. The next prime is 1296708277. The reversal of 1296708272 is 2728076921.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1296708277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 265943 + ... + 270774.

Almost surely, 2^1296708272 is an apocalyptic number.

It is an amenable number.

1296708272 is a deficient number, since it is larger than the sum of its proper divisors (1232306944).

1296708272 is a wasteful number, since it uses less digits than its factorization.

1296708272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536876 (or 536870 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 44.

The square root of 1296708272 is about 36009.8357674678. The cubic root of 1296708272 is about 1090.4709330532.

The spelling of 1296708272 in words is "one billion, two hundred ninety-six million, seven hundred eight thousand, two hundred seventy-two".