1272727344 has 80 divisors (see below), whose sum is σ = 3762036992. Its totient is φ = 363204864.

The previous prime is 1272727297. The next prime is 1272727349. The reversal of 1272727344 is 4437272721.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1272727349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 375642 + ... + 379014.

Almost surely, 2^1272727344 is an apocalyptic number.

1272727344 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1272727344 is an abundant number, since it is smaller than the sum of its proper divisors (2489309648).

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

1272727344 is a wasteful number, since it uses less digits than its factorization.

1272727344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4514 (or 4508 counting only the distinct ones).

The product of its digits is 131712, while the sum is 39.

The square root of 1272727344 is about 35675.3043995423. The cubic root of 1272727344 is about 1083.7067828910.

The spelling of 1272727344 in words is "one billion, two hundred seventy-two million, seven hundred twenty-seven thousand, three hundred forty-four".