18099306 has 24 divisors (see below), whose sum is σ = 40568580. Its totient is φ = 5824896.

The previous prime is 18099299. The next prime is 18099311. The reversal of 18099306 is 60399081.

It can be written as a sum of positive squares in 2 ways, for example, as 17015625 + 1083681 = 4125^2 + 1041^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16815 + ... + 17858.

Almost surely, 2^18099306 is an apocalyptic number.

18099306 is an abundant number, since it is smaller than the sum of its proper divisors (22469274).

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

18099306 is a wasteful number, since it uses less digits than its factorization.

18099306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34710 (or 34707 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 18099306 is about 4254.3279140189. The cubic root of 18099306 is about 262.5552101559. Note that the first 3 decimals are identical.

The spelling of 18099306 in words is "eighteen million, ninety-nine thousand, three hundred six".