99180288 has 90 divisors (see below), whose sum is σ = 295799504. Its totient is φ = 33053184.

The previous prime is 99180281. The next prime is 99180311. The reversal of 99180288 is 88208199.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99180281) 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 9 ways as a sum of consecutive naturals, for example, 18345 + ... + 23127.

Almost surely, 2^99180288 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 99180288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147899752).

99180288 is an abundant number, since it is smaller than the sum of its proper divisors (196619216).

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

99180288 is an equidigital number, since it uses as much as digits as its factorization.

99180288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4811 (or 4788 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 45.

The square root of 99180288 is about 9958.9300630138. The cubic root of 99180288 is about 462.8871467910.

The spelling of 99180288 in words is "ninety-nine million, one hundred eighty thousand, two hundred eighty-eight".