18481108 has 24 divisors (see below), whose sum is σ = 34376832. Its totient is φ = 8663424.

The previous prime is 18481097. The next prime is 18481157. The reversal of 18481108 is 80118481.

It is a self number, because there is not a number n which added to its sum of digits gives 18481108.

It is a congruent number.

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, 31191 + ... + 31777.

It is an arithmetic number, because the mean of its divisors is an integer number (1432368).

Almost surely, 2^18481108 is an apocalyptic number.

It is an amenable number.

18481108 is a deficient number, since it is larger than the sum of its proper divisors (15895724).

18481108 is a wasteful number, since it uses less digits than its factorization.

18481108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071 (or 1069 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 31.

The square root of 18481108 is about 4298.9659221724. The cubic root of 18481108 is about 264.3885654018.

Adding to 18481108 its reverse (80118481), we get a palindrome (98599589).

The spelling of 18481108 in words is "eighteen million, four hundred eighty-one thousand, one hundred eight".