12444439 has 8 divisors (see below), whose sum is σ = 14394240. Its totient is φ = 10537656.

The previous prime is 12444437. The next prime is 12444473. The reversal of 12444439 is 93444421.

12444439 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 12444439 - 2¹ = 12444437 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12444439.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12444437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10129 + ... + 11290.

It is an arithmetic number, because the mean of its divisors is an integer number (1799280).

Almost surely, 2^12444439 is an apocalyptic number.

12444439 is a deficient number, since it is larger than the sum of its proper divisors (1949801).

12444439 is an equidigital number, since it uses as much as digits as its factorization.

12444439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21509.

The product of its digits is 13824, while the sum is 31.

The square root of 12444439 is about 3527.6676430752. The cubic root of 12444439 is about 231.7350758644.

The spelling of 12444439 in words is "twelve million, four hundred forty-four thousand, four hundred thirty-nine".