99228160 has 80 divisors (see below), whose sum is σ = 241297056. Its totient is φ = 39129088.

The previous prime is 99228121. The next prime is 99228161. The reversal of 99228160 is 6182299.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (99228161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212247 + ... + 212713.

Almost surely, 2^99228160 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 99228160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120648528).

99228160 is an abundant number, since it is smaller than the sum of its proper divisors (142068896).

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

99228160 is an equidigital number, since it uses as much as digits as its factorization.

99228160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573 (or 557 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 99228160 is about 9961.3332440994. Note that the first 3 decimals coincide. The cubic root of 99228160 is about 462.9616097367.

The spelling of 99228160 in words is "ninety-nine million, two hundred twenty-eight thousand, one hundred sixty".