1109502720 has 432 divisors, whose sum is σ = 4180307040. Its totient is φ = 270729216.

The previous prime is 1109502707. The next prime is 1109502721. The reversal of 1109502720 is 272059011.

It is a Saint-Exupery number, since it is equal to the product of the sides of a Pythagorean triangle: 2740 × 148 × 2736.

It is not an unprimeable number, because it can be changed into a prime (1109502721) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8098492 + ... + 8098628.

Almost surely, 2^1109502720 is an apocalyptic number.

1109502720 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 1109502720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2090153520).

1109502720 is an abundant number, since it is smaller than the sum of its proper divisors (3070804320).

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

1109502720 is a wasteful number, since it uses less digits than its factorization.

1109502720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220 (or 203 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

The square root of 1109502720 is about 33309.1987294801. The cubic root of 1109502720 is about 1035.2441627979.

The spelling of 1109502720 in words is "one billion, one hundred nine million, five hundred two thousand, seven hundred twenty".