99804432 has 160 divisors (see below), whose sum is σ = 322701568. Its totient is φ = 25878528.

The previous prime is 99804431. The next prime is 99804437. The reversal of 99804432 is 23440899.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (99804431) 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 31 ways as a sum of consecutive naturals, for example, 318708 + ... + 319020.

Almost surely, 2^99804432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99804432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161350784).

99804432 is an abundant number, since it is smaller than the sum of its proper divisors (222897136).

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

99804432 is a wasteful number, since it uses less digits than its factorization.

99804432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417 (or 411 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 99804432 is about 9990.2168144640. The cubic root of 99804432 is about 463.8561038138.

The spelling of 99804432 in words is "ninety-nine million, eight hundred four thousand, four hundred thirty-two".