12255644 has 12 divisors (see below), whose sum is σ = 21580104. Its totient is φ = 6089904.

The previous prime is 12255637. The next prime is 12255647. The reversal of 12255644 is 44655221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12255647) 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 3 ways as a sum of consecutive naturals, for example, 8747 + ... + 10050.

It is an arithmetic number, because the mean of its divisors is an integer number (1798342).

Almost surely, 2^12255644 is an apocalyptic number.

It is an amenable number.

12255644 is a deficient number, since it is larger than the sum of its proper divisors (9324460).

12255644 is a wasteful number, since it uses less digits than its factorization.

12255644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18964 (or 18962 counting only the distinct ones).

The product of its digits is 9600, while the sum is 29.

The square root of 12255644 is about 3500.8061928647. The cubic root of 12255644 is about 230.5572122997.

The spelling of 12255644 in words is "twelve million, two hundred fifty-five thousand, six hundred forty-four".