1157752272 has 20 divisors (see below), whose sum is σ = 2990860160. Its totient is φ = 385917408.

The previous prime is 1157752223. The next prime is 1157752283. The reversal of 1157752272 is 2722577511.

It is a self number, because there is not a number n which added to its sum of digits gives 1157752272.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12059872 + ... + 12059967.

It is an arithmetic number, because the mean of its divisors is an integer number (149543008).

Almost surely, 2^1157752272 is an apocalyptic number.

1157752272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1157752272 is an abundant number, since it is smaller than the sum of its proper divisors (1833107888).

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

1157752272 is a wasteful number, since it uses less digits than its factorization.

1157752272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24119850 (or 24119844 counting only the distinct ones).

The product of its digits is 68600, while the sum is 39.

The square root of 1157752272 is about 34025.7589481851. The cubic root of 1157752272 is about 1050.0384784085.

The spelling of 1157752272 in words is "one billion, one hundred fifty-seven million, seven hundred fifty-two thousand, two hundred seventy-two".