18108256 has 24 divisors (see below), whose sum is σ = 35867664. Its totient is φ = 8999040.

The previous prime is 18108253. The next prime is 18108257. The reversal of 18108256 is 65280181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18108253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3901 + ... + 7171.

It is an arithmetic number, because the mean of its divisors is an integer number (1494486).

Almost surely, 2^18108256 is an apocalyptic number.

18108256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18108256 is a deficient number, since it is larger than the sum of its proper divisors (17759408).

18108256 is a wasteful number, since it uses less digits than its factorization.

18108256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3454 (or 3446 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 31.

The square root of 18108256 is about 4255.3796540379. The cubic root of 18108256 is about 262.5984803583.

The spelling of 18108256 in words is "eighteen million, one hundred eight thousand, two hundred fifty-six".