18009068 has 36 divisors (see below), whose sum is σ = 39998952. Its totient is φ = 7015680.

The previous prime is 18009059. The next prime is 18009073. The reversal of 18009068 is 86090081.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2021 + ... + 6332.

It is an arithmetic number, because the mean of its divisors is an integer number (1111082).

Almost surely, 2^18009068 is an apocalyptic number.

It is an amenable number.

18009068 is an abundant number, since it is smaller than the sum of its proper divisors (21989884).

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

18009068 is a wasteful number, since it uses less digits than its factorization.

18009068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8382 (or 8373 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 18009068 is about 4243.7092266083. The cubic root of 18009068 is about 262.1181410752.

The spelling of 18009068 in words is "eighteen million, nine thousand, sixty-eight".