18102256 has 20 divisors (see below), whose sum is σ = 35736552. Its totient is φ = 8879936.

The previous prime is 18102251. The next prime is 18102283. The reversal of 18102256 is 65220181.

It is a self number, because there is not a number n which added to its sum of digits gives 18102256.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18102251) 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, 9826 + ... + 11521.

Almost surely, 2^18102256 is an apocalyptic number.

18102256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18102256 is a deficient number, since it is larger than the sum of its proper divisors (17634296).

18102256 is a wasteful number, since it uses less digits than its factorization.

18102256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21408 (or 21402 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 18102256 is about 4254.6746056544. The cubic root of 18102256 is about 262.5694739770.

The spelling of 18102256 in words is "eighteen million, one hundred two thousand, two hundred fifty-six".