99980432 has 20 divisors (see below), whose sum is σ = 203908080. Its totient is φ = 47359008.

The previous prime is 99980431. The next prime is 99980437. The reversal of 99980432 is 23408999.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (99980431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164138 + ... + 164745.

It is an arithmetic number, because the mean of its divisors is an integer number (10195404).

Almost surely, 2^99980432 is an apocalyptic number.

It is an amenable number.

99980432 is an abundant number, since it is smaller than the sum of its proper divisors (103927648).

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

99980432 is a wasteful number, since it uses less digits than its factorization.

99980432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328910 (or 328904 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 44.

The square root of 99980432 is about 9999.0215521320. The cubic root of 99980432 is about 464.1286058495.

The spelling of 99980432 in words is "ninety-nine million, nine hundred eighty thousand, four hundred thirty-two".