99388392 has 64 divisors (see below), whose sum is σ = 276955200. Its totient is φ = 29537280.

The previous prime is 99388363. The next prime is 99388439. The reversal of 99388392 is 29388399.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1342 + ... + 14162.

It is an arithmetic number, because the mean of its divisors is an integer number (4327425).

Almost surely, 2^99388392 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 99388392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138477600).

99388392 is an abundant number, since it is smaller than the sum of its proper divisors (177566808).

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

99388392 is a wasteful number, since it uses less digits than its factorization.

99388392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12866 (or 12862 counting only the distinct ones).

The product of its digits is 839808, while the sum is 51.

The square root of 99388392 is about 9969.3726984199. The cubic root of 99388392 is about 463.2106699885.

The spelling of 99388392 in words is "ninety-nine million, three hundred eighty-eight thousand, three hundred ninety-two".