18095808 has 42 divisors (see below), whose sum is σ = 48034956. Its totient is φ = 6012288.

The previous prime is 18095767. The next prime is 18095813. The reversal of 18095808 is 80859081.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 58791 + ... + 59097.

Almost surely, 2^18095808 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 18095808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24017478).

18095808 is an abundant number, since it is smaller than the sum of its proper divisors (29939148).

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

18095808 is an frugal number, since it uses more digits than its factorization.

18095808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629 (or 312 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 39.

The square root of 18095808 is about 4253.9167833892. The cubic root of 18095808 is about 262.5382946399.

The spelling of 18095808 in words is "eighteen million, ninety-five thousand, eight hundred eight".