18116808 has 32 divisors (see below), whose sum is σ = 46258560. Its totient is φ = 5910080.

The previous prime is 18116807. The next prime is 18116809. The reversal of 18116808 is 80861181.

It is an interprime number because it is at equal distance from previous prime (18116807) and next prime (18116809).

It is not an unprimeable number, because it can be changed into a prime (18116807) 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, 6903 + ... + 9158.

It is an arithmetic number, because the mean of its divisors is an integer number (1445580).

Almost surely, 2^18116808 is an apocalyptic number.

It is an amenable number.

18116808 is an abundant number, since it is smaller than the sum of its proper divisors (28141752).

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

18116808 is a wasteful number, since it uses less digits than its factorization.

18116808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16117 (or 16113 counting only the distinct ones).

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

The square root of 18116808 is about 4256.3843811385. The cubic root of 18116808 is about 262.6398130477.

Adding to 18116808 its reverse (80861181), we get a palindrome (98977989).

The spelling of 18116808 in words is "eighteen million, one hundred sixteen thousand, eight hundred eight".