99904392 has 48 divisors (see below), whose sum is σ = 309229440. Its totient is φ = 28543968.

The previous prime is 99904367. The next prime is 99904411. The reversal of 99904392 is 29340999.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 98608 + ... + 99615.

It is an arithmetic number, because the mean of its divisors is an integer number (6442280).

Almost surely, 2^99904392 is an apocalyptic number.

It is an amenable number.

99904392 is an abundant number, since it is smaller than the sum of its proper divisors (209325048).

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

99904392 is a wasteful number, since it uses less digits than its factorization.

99904392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198242 (or 198235 counting only the distinct ones).

The product of its (nonzero) digits is 157464, while the sum is 45.

The square root of 99904392 is about 9995.2184568423. The cubic root of 99904392 is about 464.0109118520.

The spelling of 99904392 in words is "ninety-nine million, nine hundred four thousand, three hundred ninety-two".