99724032 has 54 divisors (see below), whose sum is σ = 287535612. Its totient is φ = 33240576.

The previous prime is 99724019. The next prime is 99724043. The reversal of 99724032 is 23042799.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19338 + ... + 23945.

Almost surely, 2^99724032 is an apocalyptic number.

It is an amenable number.

99724032 is an abundant number, since it is smaller than the sum of its proper divisors (187811580).

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

99724032 is a wasteful number, since it uses less digits than its factorization.

99724032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43305 (or 43288 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 99724032 is about 9986.1920670494. The cubic root of 99724032 is about 463.7315133226.

The spelling of 99724032 in words is "ninety-nine million, seven hundred twenty-four thousand, thirty-two".