1109379572 has 48 divisors (see below), whose sum is σ = 2312016000. Its totient is φ = 455704704.

The previous prime is 1109379569. The next prime is 1109379629. The reversal of 1109379572 is 2759739011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107954 + ... + 117782.

It is an arithmetic number, because the mean of its divisors is an integer number (48167000).

Almost surely, 2^1109379572 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 1109379572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1156008000).

1109379572 is an abundant number, since it is smaller than the sum of its proper divisors (1202636428).

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

1109379572 is a wasteful number, since it uses less digits than its factorization.

1109379572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10008 (or 10006 counting only the distinct ones).

The product of its (nonzero) digits is 119070, while the sum is 44.

The square root of 1109379572 is about 33307.3501197558. The cubic root of 1109379572 is about 1035.2058594622.

The spelling of 1109379572 in words is "one billion, one hundred nine million, three hundred seventy-nine thousand, five hundred seventy-two".