1272323344 has 20 divisors (see below), whose sum is σ = 2465873424. Its totient is φ = 635968928.

The previous prime is 1272323317. The next prime is 1272323347. The reversal of 1272323344 is 4433232721.

It is not an unprimeable number, because it can be changed into a prime (1272323347) 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, 53079 + ... + 73225.

Almost surely, 2^1272323344 is an apocalyptic number.

It is an amenable number.

1272323344 is a deficient number, since it is larger than the sum of its proper divisors (1193550080).

1272323344 is a wasteful number, since it uses less digits than its factorization.

1272323344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24102 (or 24096 counting only the distinct ones).

The product of its digits is 24192, while the sum is 31.

The square root of 1272323344 is about 35669.6417699982. The cubic root of 1272323344 is about 1083.5921042638.

The spelling of 1272323344 in words is "one billion, two hundred seventy-two million, three hundred twenty-three thousand, three hundred forty-four".