1172744872 has 32 divisors (see below), whose sum is σ = 2376649800. Its totient is φ = 539299584.

The previous prime is 1172744869. The next prime is 1172744897. The reversal of 1172744872 is 2784472711.

It can be written as a sum of positive squares in 4 ways, for example, as 494350756 + 678394116 = 22234^2 + 26046^2 .

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, 8454 + ... + 49162.

Almost surely, 2^1172744872 is an apocalyptic number.

It is an amenable number.

1172744872 is an abundant number, since it is smaller than the sum of its proper divisors (1203904928).

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

1172744872 is a wasteful number, since it uses less digits than its factorization.

1172744872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41005 (or 41001 counting only the distinct ones).

The product of its digits is 175616, while the sum is 43.

The square root of 1172744872 is about 34245.3627809664. The cubic root of 1172744872 is about 1054.5516305605.

The spelling of 1172744872 in words is "one billion, one hundred seventy-two million, seven hundred forty-four thousand, eight hundred seventy-two".