12663242 has 16 divisors (see below), whose sum is σ = 19551840. Its totient is φ = 6147792.

The previous prime is 12663241. The next prime is 12663247. The reversal of 12663242 is 24236621.

It is not an unprimeable number, because it can be changed into a prime (12663241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19373 + ... + 20015.

It is an arithmetic number, because the mean of its divisors is an integer number (1221990).

Almost surely, 2^12663242 is an apocalyptic number.

12663242 is a deficient number, since it is larger than the sum of its proper divisors (6888598).

12663242 is a wasteful number, since it uses less digits than its factorization.

12663242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 917.

The product of its digits is 3456, while the sum is 26.

The square root of 12663242 is about 3558.5449273544. The cubic root of 12663242 is about 233.0853451467.

Adding to 12663242 its reverse (24236621), we get a palindrome (36899863).

The spelling of 12663242 in words is "twelve million, six hundred sixty-three thousand, two hundred forty-two".