99412272 has 90 divisors (see below), whose sum is σ = 289207308. Its totient is φ = 33102432.

The previous prime is 99412231. The next prime is 99412321. The reversal of 99412272 is 27221499.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 104503 + ... + 105449.

Almost surely, 2^99412272 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 99412272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144603654).

99412272 is an abundant number, since it is smaller than the sum of its proper divisors (189795036).

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

99412272 is an frugal number, since it uses more digits than its factorization.

99412272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 979 (or 952 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 99412272 is about 9970.5702946221. The cubic root of 99412272 is about 463.2477654842.

The spelling of 99412272 in words is "ninety-nine million, four hundred twelve thousand, two hundred seventy-two".