1099091632 has 20 divisors (see below), whose sum is σ = 2241569080. Its totient is φ = 520622208.

The previous prime is 1099091627. The next prime is 1099091641. The reversal of 1099091632 is 2361909901.

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, 1807413 + ... + 1808020.

It is an arithmetic number, because the mean of its divisors is an integer number (112078454).

Almost surely, 2^1099091632 is an apocalyptic number.

It is an amenable number.

1099091632 is an abundant number, since it is smaller than the sum of its proper divisors (1142477448).

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

1099091632 is a wasteful number, since it uses less digits than its factorization.

1099091632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3615460 (or 3615454 counting only the distinct ones).

The product of its (nonzero) digits is 26244, while the sum is 40.

The square root of 1099091632 is about 33152.5509124109. The cubic root of 1099091632 is about 1031.9958886522.

The spelling of 1099091632 in words is "one billion, ninety-nine million, ninety-one thousand, six hundred thirty-two".