18450806 has 12 divisors (see below), whose sum is σ = 30421356. Its totient is φ = 8386620.

The previous prime is 18450799. The next prime is 18450811. The reversal of 18450806 is 60805481.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37880 + ... + 38363.

It is an arithmetic number, because the mean of its divisors is an integer number (2535113).

Almost surely, 2^18450806 is an apocalyptic number.

18450806 is a deficient number, since it is larger than the sum of its proper divisors (11970550).

18450806 is a wasteful number, since it uses less digits than its factorization.

18450806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76267 (or 76256 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 18450806 is about 4295.4401404280. The cubic root of 18450806 is about 264.2439874016.

The spelling of 18450806 in words is "eighteen million, four hundred fifty thousand, eight hundred six".