18441417 has 4 divisors (see below), whose sum is σ = 24588560. Its totient is φ = 12294276.

The previous prime is 18441407. The next prime is 18441421. The reversal of 18441417 is 71414481.

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, and also an emirpimes, since its reverse is a distinct semiprime: 71414481 = 3 ⋅23804827.

It is not a de Polignac number, because 18441417 - 2¹⁶ = 18375881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18441407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3073567 + ... + 3073572.

It is an arithmetic number, because the mean of its divisors is an integer number (6147140).

Almost surely, 2^18441417 is an apocalyptic number.

It is an amenable number.

18441417 is a deficient number, since it is larger than the sum of its proper divisors (6147143).

18441417 is an equidigital number, since it uses as much as digits as its factorization.

18441417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6147142.

The product of its digits is 3584, while the sum is 30.

The square root of 18441417 is about 4294.3470982211. The cubic root of 18441417 is about 264.1991581451.

Adding to 18441417 its reverse (71414481), we get a palindrome (89855898).

The spelling of 18441417 in words is "eighteen million, four hundred forty-one thousand, four hundred seventeen".