1109280768 has 48 divisors (see below), whose sum is σ = 2957376240. Its totient is φ = 369758208.

The previous prime is 1109280751. The next prime is 1109280779. The reversal of 1109280768 is 8670829011.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84130 + ... + 96417.

It is an arithmetic number, because the mean of its divisors is an integer number (61612005).

Almost surely, 2^1109280768 is an apocalyptic number.

It is an amenable number.

1109280768 is an abundant number, since it is smaller than the sum of its proper divisors (1848095472).

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

1109280768 is an equidigital number, since it uses as much as digits as its factorization.

1109280768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180572 (or 180552 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 42.

The square root of 1109280768 is about 33305.8668705680. The cubic root of 1109280768 is about 1035.1751259126.

The spelling of 1109280768 in words is "one billion, one hundred nine million, two hundred eighty thousand, seven hundred sixty-eight".