12744418 has 8 divisors (see below), whose sum is σ = 19166940. Its totient is φ = 6355440.

The previous prime is 12744409. The next prime is 12744419. The reversal of 12744418 is 81444721.

It is a happy number.

12744418 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 9529569 + 3214849 = 3087^2 + 1793^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 12744418.

It is not an unprimeable number, because it can be changed into a prime (12744419) 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, 7413 + ... + 8968.

Almost surely, 2^12744418 is an apocalyptic number.

12744418 is a deficient number, since it is larger than the sum of its proper divisors (6422522).

12744418 is a wasteful number, since it uses less digits than its factorization.

12744418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16772.

The product of its digits is 7168, while the sum is 31.

The square root of 12744418 is about 3569.9324923589. The cubic root of 12744418 is about 233.5823387106.

The spelling of 12744418 in words is "twelve million, seven hundred forty-four thousand, four hundred eighteen".