18008108 has 24 divisors (see below), whose sum is σ = 32192160. Its totient is φ = 8812800.

The previous prime is 18008093. The next prime is 18008113. The reversal of 18008108 is 80180081.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44708 + ... + 45108.

It is an arithmetic number, because the mean of its divisors is an integer number (1341340).

Almost surely, 2^18008108 is an apocalyptic number.

It is an amenable number.

18008108 is a deficient number, since it is larger than the sum of its proper divisors (14184052).

18008108 is a wasteful number, since it uses less digits than its factorization.

18008108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617 (or 615 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 26.

The square root of 18008108 is about 4243.5961165031. The cubic root of 18008108 is about 262.1134834608.

Adding to 18008108 its reverse (80180081), we get a palindrome (98188189).

The spelling of 18008108 in words is "eighteen million, eight thousand, one hundred eight".