99288880 has 40 divisors (see below), whose sum is σ = 236484864. Its totient is φ = 38745600.

The previous prime is 99288829. The next prime is 99288883. The reversal of 99288880 is 8888299.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (99288883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11856 + ... + 18415.

Almost surely, 2^99288880 is an apocalyptic number.

It is an amenable number.

99288880 is an abundant number, since it is smaller than the sum of its proper divisors (137195984).

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

99288880 is a wasteful number, since it uses less digits than its factorization.

99288880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30325 (or 30319 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 52.

The square root of 99288880 is about 9964.3805627846. The cubic root of 99288880 is about 463.0560227775.

The spelling of 99288880 in words is "ninety-nine million, two hundred eighty-eight thousand, eight hundred eighty".