1109920000 has 180 divisors, whose sum is σ = 3167186176. Its totient is φ = 380160000.

The previous prime is 1109919997. The next prime is 1109920081. The reversal of 1109920000 is 299011.

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, 1119505 + ... + 1120495.

Almost surely, 2^1109920000 is an apocalyptic number.

1109920000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1109920000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1583593088).

1109920000 is an abundant number, since it is smaller than the sum of its proper divisors (2057266176).

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

1109920000 is an frugal number, since it uses more digits than its factorization.

1109920000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1034 (or 1005 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 22.

The square root of 1109920000 is about 33315.4618758318. The cubic root of 1109920000 is about 1035.3739304050.

The spelling of 1109920000 in words is "one billion, one hundred nine million, nine hundred twenty thousand".