12742844 has 24 divisors (see below), whose sum is σ = 23708160. Its totient is φ = 5975856.

The previous prime is 12742823. The next prime is 12742871. The reversal of 12742844 is 44824721.

It is a self number, because there is not a number n which added to its sum of digits gives 12742844.

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 7 ways as a sum of consecutive naturals, for example, 7349 + ... + 8915.

It is an arithmetic number, because the mean of its divisors is an integer number (987840).

Almost surely, 2^12742844 is an apocalyptic number.

It is an amenable number.

12742844 is a deficient number, since it is larger than the sum of its proper divisors (10965316).

12742844 is a wasteful number, since it uses less digits than its factorization.

12742844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1697 (or 1695 counting only the distinct ones).

The product of its digits is 14336, while the sum is 32.

The square root of 12742844 is about 3569.7120332038. The cubic root of 12742844 is about 233.5727221151.

The spelling of 12742844 in words is "twelve million, seven hundred forty-two thousand, eight hundred forty-four".