12442438 has 8 divisors (see below), whose sum is σ = 18686880. Its totient is φ = 6213480.

The previous prime is 12442429. The next prime is 12442513. The reversal of 12442438 is 83424421.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1593 + ... + 5236.

It is an arithmetic number, because the mean of its divisors is an integer number (2335860).

Almost surely, 2^12442438 is an apocalyptic number.

12442438 is a deficient number, since it is larger than the sum of its proper divisors (6244442).

12442438 is an equidigital number, since it uses as much as digits as its factorization.

12442438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7742.

The product of its digits is 6144, while the sum is 28.

The square root of 12442438 is about 3527.3840165199. The cubic root of 12442438 is about 231.7226546069.

Adding to 12442438 its reverse (83424421), we get a palindrome (95866859).

It can be divided in two parts, 12442 and 438, that added together give a triangular number (12880 = T₁₆₀).

The spelling of 12442438 in words is "twelve million, four hundred forty-two thousand, four hundred thirty-eight".