18004041 has 24 divisors (see below), whose sum is σ = 29352960. Its totient is φ = 10533600.

The previous prime is 18004033. The next prime is 18004061. The reversal of 18004041 is 14040081.

It is not a de Polignac number, because 18004041 - 2³ = 18004033 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (18004061) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 265 + ... + 6006.

It is an arithmetic number, because the mean of its divisors is an integer number (1223040).

Almost surely, 2^18004041 is an apocalyptic number.

18004041 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

18004041 is a deficient number, since it is larger than the sum of its proper divisors (11348919).

18004041 is a wasteful number, since it uses less digits than its factorization.

18004041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6317 (or 6314 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 18004041 is about 4243.1168968106. The cubic root of 18004041 is about 262.0937498349.

It can be divided in two parts, 180040 and 41, that added together give a palindrome (180081).

The spelling of 18004041 in words is "eighteen million, four thousand, forty-one".