18228695 has 12 divisors (see below), whose sum is σ = 23088600. Its totient is φ = 13814064.

The previous prime is 18228677. The next prime is 18228701. The reversal of 18228695 is 59682281.

It is not a de Polignac number, because 18228695 - 2⁸ = 18228439 is a prime.

It is a super-3 number, since 3×18228695³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3245 + ... + 6854.

It is an arithmetic number, because the mean of its divisors is an integer number (1924050).

Almost surely, 2^18228695 is an apocalyptic number.

18228695 is a deficient number, since it is larger than the sum of its proper divisors (4859905).

18228695 is a wasteful number, since it uses less digits than its factorization.

18228695 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10142 (or 10123 counting only the distinct ones).

The product of its digits is 69120, while the sum is 41.

The square root of 18228695 is about 4269.5075828484. The cubic root of 18228695 is about 263.1793800037.

The spelling of 18228695 in words is "eighteen million, two hundred twenty-eight thousand, six hundred ninety-five".