1099880432 has 40 divisors (see below), whose sum is σ = 2494861152. Its totient is φ = 459878400.

The previous prime is 1099880413. The next prime is 1099880449. The reversal of 1099880432 is 2340889901.

It is a happy number.

It is a congruent number.

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, 115169 + ... + 124352.

Almost surely, 2^1099880432 is an apocalyptic number.

It is an amenable number.

1099880432 is an abundant number, since it is smaller than the sum of its proper divisors (1394980720).

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

1099880432 is a wasteful number, since it uses less digits than its factorization.

1099880432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239577 (or 239571 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 44.

The square root of 1099880432 is about 33164.4452991453. The cubic root of 1099880432 is about 1032.2427117772.

The spelling of 1099880432 in words is "one billion, ninety-nine million, eight hundred eighty thousand, four hundred thirty-two".