1117572372 has 36 divisors (see below), whose sum is σ = 3228543136. Its totient is φ = 319306320.

The previous prime is 1117572361. The next prime is 1117572427. The reversal of 1117572372 is 2732757111.

It is a happy number.

1117572372 is a `hidden beast` number, since 1 + 1 + 17 + 572 + 3 + 72 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 2217154 + ... + 2217657.

Almost surely, 2^1117572372 is an apocalyptic number.

1117572372 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1117572372 is an abundant number, since it is smaller than the sum of its proper divisors (2110970764).

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

1117572372 is a wasteful number, since it uses less digits than its factorization.

1117572372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4434828 (or 4434823 counting only the distinct ones).

The product of its digits is 20580, while the sum is 36.

The square root of 1117572372 is about 33430.1117557211. Note that the first 3 decimals coincide. The cubic root of 1117572372 is about 1037.7479535492.

The spelling of 1117572372 in words is "one billion, one hundred seventeen million, five hundred seventy-two thousand, three hundred seventy-two".