99407924 has 48 divisors (see below), whose sum is σ = 228318720. Its totient is φ = 36689760.

The previous prime is 99407899. The next prime is 99407929. The reversal of 99407924 is 42970499.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99407929) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2642 + ... + 14345.

It is an arithmetic number, because the mean of its divisors is an integer number (4756640).

Almost surely, 2^99407924 is an apocalyptic number.

It is an amenable number.

99407924 is an abundant number, since it is smaller than the sum of its proper divisors (128910796).

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

99407924 is a wasteful number, since it uses less digits than its factorization.

99407924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17028 (or 17026 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 99407924 is about 9970.3522505476. The cubic root of 99407924 is about 463.2410116880.

The spelling of 99407924 in words is "ninety-nine million, four hundred seven thousand, nine hundred twenty-four".