99024420 has 96 divisors (see below), whose sum is σ = 307722240. Its totient is φ = 23589760.

The previous prime is 99024403. The next prime is 99024421. The reversal of 99024420 is 2442099.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (99024421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37669 + ... + 40211.

It is an arithmetic number, because the mean of its divisors is an integer number (3205440).

Almost surely, 2^99024420 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 99024420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153861120).

99024420 is an abundant number, since it is smaller than the sum of its proper divisors (208697820).

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

99024420 is a wasteful number, since it uses less digits than its factorization.

99024420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2625 (or 2623 counting only the distinct ones).

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

The square root of 99024420 is about 9951.1014465736. The cubic root of 99024420 is about 462.6445343258.

The spelling of 99024420 in words is "ninety-nine million, twenty-four thousand, four hundred twenty".