18730166 has 16 divisors (see below), whose sum is σ = 34579104. Its totient is φ = 7409664.

The previous prime is 18730163. The next prime is 18730193. The reversal of 18730166 is 66103781.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18730163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51275 + ... + 51638.

It is an arithmetic number, because the mean of its divisors is an integer number (2161194).

Almost surely, 2^18730166 is an apocalyptic number.

18730166 is a deficient number, since it is larger than the sum of its proper divisors (15848938).

18730166 is a wasteful number, since it uses less digits than its factorization.

18730166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102935.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 18730166 is about 4327.8361798941. The cubic root of 18730166 is about 265.5709347126.

The spelling of 18730166 in words is "eighteen million, seven hundred thirty thousand, one hundred sixty-six".