99445228 has 12 divisors (see below), whose sum is σ = 174108760. Its totient is φ = 49699872.

The previous prime is 99445217. The next prime is 99445231. The reversal of 99445228 is 82254499.

It is a happy number.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7603 + ... + 16021.

Almost surely, 2^99445228 is an apocalyptic number.

It is an amenable number.

99445228 is a deficient number, since it is larger than the sum of its proper divisors (74663532).

99445228 is a wasteful number, since it uses less digits than its factorization.

99445228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11376 (or 11374 counting only the distinct ones).

The product of its digits is 207360, while the sum is 43.

The square root of 99445228 is about 9972.2228214175. Note that the first 3 decimals coincide. The cubic root of 99445228 is about 463.2989499987.

The spelling of 99445228 in words is "ninety-nine million, four hundred forty-five thousand, two hundred twenty-eight".