12441438 has 40 divisors (see below), whose sum is σ = 28357560. Its totient is φ = 4075920.

The previous prime is 12441421. The next prime is 12441439. The reversal of 12441438 is 83414421.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12441439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 9253 + ... + 10511.

It is an arithmetic number, because the mean of its divisors is an integer number (708939).

Almost surely, 2^12441438 is an apocalyptic number.

12441438 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12441438, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14178780).

12441438 is an abundant number, since it is smaller than the sum of its proper divisors (15916122).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12441438 is a wasteful number, since it uses less digits than its factorization.

12441438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1334 (or 1325 counting only the distinct ones).

The product of its digits is 3072, while the sum is 27.

The square root of 12441438 is about 3527.2422655667. The cubic root of 12441438 is about 231.7164465829.

Adding to 12441438 its reverse (83414421), we get a palindrome (95855859).

The spelling of 12441438 in words is "twelve million, four hundred forty-one thousand, four hundred thirty-eight".