12443668 has 12 divisors (see below), whose sum is σ = 22527540. Its totient is φ = 6007232.

The previous prime is 12443657. The next prime is 12443681. The reversal of 12443668 is 86634421.

It can be written as a sum of positive squares in 2 ways, for example, as 2883204 + 9560464 = 1698^2 + 3092^2 .

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 53521 + ... + 53752.

It is an arithmetic number, because the mean of its divisors is an integer number (1877295).

Almost surely, 2^12443668 is an apocalyptic number.

It is an amenable number.

12443668 is a deficient number, since it is larger than the sum of its proper divisors (10083872).

12443668 is a wasteful number, since it uses less digits than its factorization.

12443668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107306 (or 107304 counting only the distinct ones).

The product of its digits is 27648, while the sum is 34.

The square root of 12443668 is about 3527.5583623804. The cubic root of 12443668 is about 231.7302900203.

It can be divided in two parts, 124436 and 68, that multiplied together give a palindrome (8461648).

The spelling of 12443668 in words is "twelve million, four hundred forty-three thousand, six hundred sixty-eight".