12440536 has 16 divisors (see below), whose sum is σ = 24130800. Its totient is φ = 6005664.

The previous prime is 12440521. The next prime is 12440537. The reversal of 12440536 is 63504421.

It is a self number, because there is not a number n which added to its sum of digits gives 12440536.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12440537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26580 + ... + 27043.

It is an arithmetic number, because the mean of its divisors is an integer number (1508175).

Almost surely, 2^12440536 is an apocalyptic number.

It is an amenable number.

12440536 is a deficient number, since it is larger than the sum of its proper divisors (11690264).

12440536 is a wasteful number, since it uses less digits than its factorization.

12440536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53658 (or 53654 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 12440536 is about 3527.1144013201. The cubic root of 12440536 is about 231.7108466598.

Adding to 12440536 its reverse (63504421), we get a palindrome (75944957).

The spelling of 12440536 in words is "twelve million, four hundred forty thousand, five hundred thirty-six".