1109472252 has 48 divisors (see below), whose sum is σ = 3087232512. Its totient is φ = 303209280.

The previous prime is 1109472239. The next prime is 1109472257. The reversal of 1109472252 is 2522749011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1109472257) 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, 285199 + ... + 289062.

It is an arithmetic number, because the mean of its divisors is an integer number (64317344).

Almost surely, 2^1109472252 is an apocalyptic number.

1109472252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1109472252 is an abundant number, since it is smaller than the sum of its proper divisors (1977760260).

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

1109472252 is a wasteful number, since it uses less digits than its factorization.

1109472252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 574298 (or 574296 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 1109472252 is about 33308.7413752006. The cubic root of 1109472252 is about 1035.2346864480.

The spelling of 1109472252 in words is "one billion, one hundred nine million, four hundred seventy-two thousand, two hundred fifty-two".