99290220 has 48 divisors (see below), whose sum is σ = 281833440. Its totient is φ = 26113536.

The previous prime is 99290209. The next prime is 99290221. The reversal of 99290220 is 2209299.

It is not an unprimeable number, because it can be changed into a prime (99290221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6955 + ... + 15714.

It is an arithmetic number, because the mean of its divisors is an integer number (5871530).

Almost surely, 2^99290220 is an apocalyptic number.

It is an amenable number.

99290220 is an abundant number, since it is smaller than the sum of its proper divisors (182543220).

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

99290220 is a wasteful number, since it uses less digits than its factorization.

99290220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22754 (or 22752 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 99290220 is about 9964.4478020611. The cubic root of 99290220 is about 463.0581058986.

The spelling of 99290220 in words is "ninety-nine million, two hundred ninety thousand, two hundred twenty".