18900068 has 12 divisors (see below), whose sum is σ = 36082032. Its totient is φ = 8590920.

The previous prime is 18900067. The next prime is 18900071. The reversal of 18900068 is 86000981.

It is not an unprimeable number, because it can be changed into a prime (18900061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 214730 + ... + 214817.

It is an arithmetic number, because the mean of its divisors is an integer number (3006836).

Almost surely, 2^18900068 is an apocalyptic number.

It is an amenable number.

18900068 is a deficient number, since it is larger than the sum of its proper divisors (17181964).

18900068 is a wasteful number, since it uses less digits than its factorization.

18900068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429562 (or 429560 counting only the distinct ones).

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

The square root of 18900068 is about 4347.4208445928. The cubic root of 18900068 is about 266.3715199799.

The spelling of 18900068 in words is "eighteen million, nine hundred thousand, sixty-eight".