1113039872 has 88 divisors (see below), whose sum is σ = 2625400320. Its totient is φ = 461537280.

The previous prime is 1113039847. The next prime is 1113039887. The reversal of 1113039872 is 2789303111.

It is a happy number.

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, 219704 + ... + 224712.

Almost surely, 2^1113039872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1113039872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1312700160).

1113039872 is an abundant number, since it is smaller than the sum of its proper divisors (1512360448).

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

1113039872 is an equidigital number, since it uses as much as digits as its factorization.

1113039872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5067 (or 5049 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 1113039872 is about 33362.2522021521. The cubic root of 1113039872 is about 1036.3431330601.

The spelling of 1113039872 in words is "one billion, one hundred thirteen million, thirty-nine thousand, eight hundred seventy-two".