1109388960 has 120 divisors (see below), whose sum is σ = 3915264276. Its totient is φ = 295833600.

The previous prime is 1109388953. The next prime is 1109388983. The reversal of 1109388960 is 698839011.

It can be written as a sum of positive squares in 2 ways, for example, as 1094551056 + 14837904 = 33084^2 + 3852^2 .

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 29841 + ... + 55760.

Almost surely, 2^1109388960 is an apocalyptic number.

1109388960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1109388960 is an abundant number, since it is smaller than the sum of its proper divisors (2805875316).

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

1109388960 is an equidigital number, since it uses as much as digits as its factorization.

1109388960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85628 (or 85611 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 45.

The square root of 1109388960 is about 33307.4910493120. The cubic root of 1109388960 is about 1035.2087795584.

The spelling of 1109388960 in words is "one billion, one hundred nine million, three hundred eighty-eight thousand, nine hundred sixty".