18088008 has 32 divisors (see below), whose sum is σ = 45326400. Its totient is φ = 6015168.

The previous prime is 18087991. The next prime is 18088027. The reversal of 18088008 is 80088081.

It is a Cunningham number, because it is equal to 4253²-1.

It is a self number, because there is not a number n which added to its sum of digits gives 18088008.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16485 + ... + 17547.

It is an arithmetic number, because the mean of its divisors is an integer number (1416450).

Almost surely, 2^18088008 is an apocalyptic number.

It is an amenable number.

18088008 is an abundant number, since it is smaller than the sum of its proper divisors (27238392).

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

18088008 is a wasteful number, since it uses less digits than its factorization.

18088008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1781 (or 1777 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 33.

The square root of 18088008 is about 4252.9998824359. Note that the first 3 decimals coincide. The cubic root of 18088008 is about 262.5005677992.

It can be divided in two parts, 180 and 88008, that added together give a palindrome (88188).

The spelling of 18088008 in words is "eighteen million, eighty-eight thousand, eight".