12440566 has 16 divisors (see below), whose sum is σ = 19832256. Its totient is φ = 5832576.

The previous prime is 12440557. The next prime is 12440567. The reversal of 12440566 is 66504421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12440567) 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 7 ways as a sum of consecutive naturals, for example, 11980 + ... + 12976.

It is an arithmetic number, because the mean of its divisors is an integer number (1239516).

Almost surely, 2^12440566 is an apocalyptic number.

12440566 is a deficient number, since it is larger than the sum of its proper divisors (7391690).

12440566 is a wasteful number, since it uses less digits than its factorization.

12440566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1383.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 12440566 is about 3527.1186540858. The cubic root of 12440566 is about 231.7110329144.

Adding to 12440566 its reverse (66504421), we get a palindrome (78944987).

The spelling of 12440566 in words is "twelve million, four hundred forty thousand, five hundred sixty-six".