99408624 has 80 divisors (see below), whose sum is σ = 295219200. Its totient is φ = 28235520.

The previous prime is 99408613. The next prime is 99408629. The reversal of 99408624 is 42680499.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99408629) 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, 63402 + ... + 64950.

It is an arithmetic number, because the mean of its divisors is an integer number (3690240).

Almost surely, 2^99408624 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 99408624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147609600).

99408624 is an abundant number, since it is smaller than the sum of its proper divisors (195810576).

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

99408624 is a wasteful number, since it uses less digits than its factorization.

99408624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1758 (or 1752 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 99408624 is about 9970.3873545615. The cubic root of 99408624 is about 463.2420990190.

The spelling of 99408624 in words is "ninety-nine million, four hundred eight thousand, six hundred twenty-four".