1109102640 has 40 divisors (see below), whose sum is σ = 3438218928. Its totient is φ = 295760640.

The previous prime is 1109102633. The next prime is 1109102699. The reversal of 1109102640 is 462019011.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 1109102640.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2310391 + ... + 2310870.

Almost surely, 2^1109102640 is an apocalyptic number.

1109102640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1109102640 is an abundant number, since it is smaller than the sum of its proper divisors (2329116288).

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

1109102640 is a wasteful number, since it uses less digits than its factorization.

1109102640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4621277 (or 4621271 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 1109102640 is about 33303.1926397455. The cubic root of 1109102640 is about 1035.1197135676.

The spelling of 1109102640 in words is "one billion, one hundred nine million, one hundred two thousand, six hundred forty".