18256041 has 12 divisors (see below), whose sum is σ = 26416260. Its totient is φ = 12149280.

The previous prime is 18256027. The next prime is 18256057. The reversal of 18256041 is 14065281.

It can be written as a sum of positive squares in 2 ways, for example, as 5978025 + 12278016 = 2445^2 + 3504^2 .

It is not a de Polignac number, because 18256041 - 2¹¹ = 18253993 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 18255996 and 18256014.

It is not an unprimeable number, because it can be changed into a prime (18256081) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4951 + ... + 7811.

It is an arithmetic number, because the mean of its divisors is an integer number (2201355).

Almost surely, 2^18256041 is an apocalyptic number.

It is an amenable number.

18256041 is a deficient number, since it is larger than the sum of its proper divisors (8160219).

18256041 is a wasteful number, since it uses less digits than its factorization.

18256041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3576 (or 3573 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 18256041 is about 4272.7088597282. The cubic root of 18256041 is about 263.3109181725.

The spelling of 18256041 in words is "eighteen million, two hundred fifty-six thousand, forty-one".