18195088 has 20 divisors (see below), whose sum is σ = 35319168. Its totient is φ = 9080480.

The previous prime is 18195077. The next prime is 18195091. The reversal of 18195088 is 88059181.

It is a super-2 number, since 2×18195088² = 662122454655488, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18195088.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15945 + ... + 17047.

Almost surely, 2^18195088 is an apocalyptic number.

It is an amenable number.

18195088 is a deficient number, since it is larger than the sum of its proper divisors (17124080).

18195088 is a wasteful number, since it uses less digits than its factorization.

18195088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2142 (or 2136 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 40.

The square root of 18195088 is about 4265.5700674119. The cubic root of 18195088 is about 263.0175452255.

The spelling of 18195088 in words is "eighteen million, one hundred ninety-five thousand, eighty-eight".