12755444 has 18 divisors (see below), whose sum is σ = 24172470. Its totient is φ = 5886816.

The previous prime is 12755437. The next prime is 12755453. The reversal of 12755444 is 44455721.

It can be written as a sum of positive squares in 3 ways, for example, as 1276900 + 11478544 = 1130^2 + 3388^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12755444.

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 5 ways as a sum of consecutive naturals, for example, 8759 + ... + 10110.

It is an arithmetic number, because the mean of its divisors is an integer number (1342915).

Almost surely, 2^12755444 is an apocalyptic number.

It is an amenable number.

12755444 is a deficient number, since it is larger than the sum of its proper divisors (11417026).

12755444 is a wasteful number, since it uses less digits than its factorization.

12755444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18899 (or 18884 counting only the distinct ones).

The product of its digits is 22400, while the sum is 32.

The square root of 12755444 is about 3571.4764453934. The cubic root of 12755444 is about 233.6496815657.

The spelling of 12755444 in words is "twelve million, seven hundred fifty-five thousand, four hundred forty-four".