99443232 has 144 divisors (see below), whose sum is σ = 326918592. Its totient is φ = 28085760.

The previous prime is 99443221. The next prime is 99443273. The reversal of 99443232 is 23234499.

It is a tau number, because it is divible by the number of its divisors (144).

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

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 215482 + ... + 215942.

It is an arithmetic number, because the mean of its divisors is an integer number (2270268).

Almost surely, 2^99443232 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 99443232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163459296).

99443232 is an abundant number, since it is smaller than the sum of its proper divisors (227475360).

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

99443232 is a wasteful number, since it uses less digits than its factorization.

99443232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 591 (or 580 counting only the distinct ones).

The product of its digits is 46656, while the sum is 36.

The square root of 99443232 is about 9972.1227429269. The cubic root of 99443232 is about 463.2958502995.

The spelling of 99443232 in words is "ninety-nine million, four hundred forty-three thousand, two hundred thirty-two".