18168108 has 48 divisors (see below), whose sum is σ = 50018304. Its totient is φ = 5022720.

The previous prime is 18168083. The next prime is 18168109. The reversal of 18168108 is 80186181.

It is not an unprimeable number, because it can be changed into a prime (18168109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 885 + ... + 6092.

It is an arithmetic number, because the mean of its divisors is an integer number (1042048).

Almost surely, 2^18168108 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18168108, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25009152).

18168108 is an abundant number, since it is smaller than the sum of its proper divisors (31850196).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18168108 is a wasteful number, since it uses less digits than its factorization.

18168108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7022 (or 7020 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 33.

The square root of 18168108 is about 4262.4063626079. The cubic root of 18168108 is about 262.8874785517.

The spelling of 18168108 in words is "eighteen million, one hundred sixty-eight thousand, one hundred eight".