18256850 has 12 divisors (see below), whose sum is σ = 33957834. Its totient is φ = 7302720.

The previous prime is 18256841. The next prime is 18256859. The reversal of 18256850 is 5865281.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (18256841) and next prime (18256859).

It can be written as a sum of positive squares in 3 ways, for example, as 12061729 + 6195121 = 3473^2 + 2489^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 18256850.

It is not an unprimeable number, because it can be changed into a prime (18256859) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 182519 + ... + 182618.

Almost surely, 2^18256850 is an apocalyptic number.

18256850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18256850 is a deficient number, since it is larger than the sum of its proper divisors (15700984).

18256850 is a wasteful number, since it uses less digits than its factorization.

18256850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365149 (or 365144 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 35.

The square root of 18256850 is about 4272.8035293002. The cubic root of 18256850 is about 263.3148075771.

The spelling of 18256850 in words is "eighteen million, two hundred fifty-six thousand, eight hundred fifty".