99442224 has 120 divisors (see below), whose sum is σ = 324979200. Its totient is φ = 27794304.

The previous prime is 99442207. The next prime is 99442229. The reversal of 99442224 is 42224499.

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 a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99442229) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46327 + ... + 48425.

It is an arithmetic number, because the mean of its divisors is an integer number (2708160).

Almost surely, 2^99442224 is an apocalyptic number.

99442224 is a gapful number since it is divisible by the number (94) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99442224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162489600).

99442224 is an abundant number, since it is smaller than the sum of its proper divisors (225536976).

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

99442224 is a wasteful number, since it uses less digits than its factorization.

99442224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2167 (or 2158 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 99442224 is about 9972.0722019047. The cubic root of 99442224 is about 463.2942849045.

The spelling of 99442224 in words is "ninety-nine million, four hundred forty-two thousand, two hundred twenty-four".