18168241 has 16 divisors (see below), whose sum is σ = 22788864. Its totient is φ = 14099904.

The previous prime is 18168217. The next prime is 18168251. The reversal of 18168241 is 14286181.

It is not a de Polignac number, because 18168241 - 2⁷ = 18168113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18168211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2940 + ... + 6706.

It is an arithmetic number, because the mean of its divisors is an integer number (1424304).

Almost surely, 2^18168241 is an apocalyptic number.

It is an amenable number.

18168241 is a deficient number, since it is larger than the sum of its proper divisors (4620623).

18168241 is a wasteful number, since it uses less digits than its factorization.

18168241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3840.

The product of its digits is 3072, while the sum is 31.

The square root of 18168241 is about 4262.4219640951. The cubic root of 18168241 is about 262.8881200412. Note that the first 3 decimals are identical.

The spelling of 18168241 in words is "eighteen million, one hundred sixty-eight thousand, two hundred forty-one".