18116256 has 24 divisors (see below), whose sum is σ = 47555424. Its totient is φ = 6038720.

The previous prime is 18116251. The next prime is 18116257. The reversal of 18116256 is 65261181.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18116251) 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, 94260 + ... + 94451.

It is an arithmetic number, because the mean of its divisors is an integer number (1981476).

Almost surely, 2^18116256 is an apocalyptic number.

18116256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18116256 is an abundant number, since it is smaller than the sum of its proper divisors (29439168).

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

18116256 is a wasteful number, since it uses less digits than its factorization.

18116256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188724 (or 188716 counting only the distinct ones).

The product of its digits is 2880, while the sum is 30.

The square root of 18116256 is about 4256.3195368769. The cubic root of 18116256 is about 262.6371455681.

The spelling of 18116256 in words is "eighteen million, one hundred sixteen thousand, two hundred fifty-six".