99933228 has 36 divisors (see below), whose sum is σ = 253092840. Its totient is φ = 33247296.

The previous prime is 99933227. The next prime is 99933283. The reversal of 99933228 is 82233999.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (99933221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18768 + ... + 23496.

Almost surely, 2^99933228 is an apocalyptic number.

It is an amenable number.

99933228 is an abundant number, since it is smaller than the sum of its proper divisors (153159612).

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

99933228 is a wasteful number, since it uses less digits than its factorization.

99933228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5326 (or 5321 counting only the distinct ones).

The product of its digits is 209952, while the sum is 45.

The square root of 99933228 is about 9996.6608425014. The cubic root of 99933228 is about 464.0555509690.

The spelling of 99933228 in words is "ninety-nine million, nine hundred thirty-three thousand, two hundred twenty-eight".