18442041 has 4 divisors (see below), whose sum is σ = 24589392. Its totient is φ = 12294692.

The previous prime is 18442013. The next prime is 18442097. The reversal of 18442041 is 14024481.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 18442041 - 2¹⁵ = 18409273 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (18442441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3073671 + ... + 3073676.

It is an arithmetic number, because the mean of its divisors is an integer number (6147348).

Almost surely, 2^18442041 is an apocalyptic number.

It is an amenable number.

18442041 is a deficient number, since it is larger than the sum of its proper divisors (6147351).

18442041 is an equidigital number, since it uses as much as digits as its factorization.

18442041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6147350.

The product of its (nonzero) digits is 1024, while the sum is 24.

The square root of 18442041 is about 4294.4197512586. The cubic root of 18442041 is about 264.2021380031.

The spelling of 18442041 in words is "eighteen million, four hundred forty-two thousand, forty-one".