99420024 has 64 divisors (see below), whose sum is σ = 272160000. Its totient is φ = 30014720.

The previous prime is 99420019. The next prime is 99420037. The reversal of 99420024 is 42002499.

It is a junction number, because it is equal to n+sod(n) for n = 99419973 and 99420000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94252 + ... + 95300.

It is an arithmetic number, because the mean of its divisors is an integer number (4252500).

Almost surely, 2^99420024 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 99420024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136080000).

99420024 is an abundant number, since it is smaller than the sum of its proper divisors (172739976).

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

99420024 is a wasteful number, since it uses less digits than its factorization.

99420024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1428 (or 1424 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 99420024 is about 9970.9590311063. The cubic root of 99420024 is about 463.2598062623.

The spelling of 99420024 in words is "ninety-nine million, four hundred twenty thousand, twenty-four".