99408880 has 20 divisors (see below), whose sum is σ = 231125832. Its totient is φ = 39763520.

The previous prime is 99408871. The next prime is 99408919. The reversal of 99408880 is 8880499.

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 99408880.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 621226 + ... + 621385.

Almost surely, 2^99408880 is an apocalyptic number.

It is an amenable number.

99408880 is an abundant number, since it is smaller than the sum of its proper divisors (131716952).

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

99408880 is a wasteful number, since it uses less digits than its factorization.

99408880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1242624 (or 1242618 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 46.

The square root of 99408880 is about 9970.4001925700. The cubic root of 99408880 is about 463.2424966702.

The spelling of 99408880 in words is "ninety-nine million, four hundred eight thousand, eight hundred eighty".