18464041 has 4 divisors (see below), whose sum is σ = 18544900. Its totient is φ = 18383184.

The previous prime is 18463979. The next prime is 18464051. The reversal of 18464041 is 14046481.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14046481 = 211 ⋅66571.

It can be written as a sum of positive squares in 2 ways, for example, as 14220441 + 4243600 = 3771^2 + 2060^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18464041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18464051) 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, 40086 + ... + 40543.

It is an arithmetic number, because the mean of its divisors is an integer number (4636225).

Almost surely, 2^18464041 is an apocalyptic number.

It is an amenable number.

18464041 is a deficient number, since it is larger than the sum of its proper divisors (80859).

18464041 is an equidigital number, since it uses as much as digits as its factorization.

18464041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80858.

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 18464041 is about 4296.9804514333. The cubic root of 18464041 is about 264.3071541687.

The spelling of 18464041 in words is "eighteen million, four hundred sixty-four thousand, forty-one".