12440337 has 16 divisors (see below), whose sum is σ = 20415360. Its totient is φ = 6561792.

The previous prime is 12440317. The next prime is 12440339. The reversal of 12440337 is 73304421.

It is not a de Polignac number, because 12440337 - 2⁶ = 12440273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12440339) 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 15 ways as a sum of consecutive naturals, for example, 22512 + ... + 23057.

It is an arithmetic number, because the mean of its divisors is an integer number (1275960).

Almost surely, 2^12440337 is an apocalyptic number.

It is an amenable number.

12440337 is a deficient number, since it is larger than the sum of its proper divisors (7975023).

12440337 is a wasteful number, since it uses less digits than its factorization.

12440337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45592.

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 12440337 is about 3527.0861911782. The cubic root of 12440337 is about 231.7096111636.

Adding to 12440337 its reverse (73304421), we get a palindrome (85744758).

The spelling of 12440337 in words is "twelve million, four hundred forty thousand, three hundred thirty-seven".