12684444 has 12 divisors (see below), whose sum is σ = 29597064. Its totient is φ = 4228144.

The previous prime is 12684421. The next prime is 12684449. The reversal of 12684444 is 44448621.

It is a tau number, because it is divible by the number of its divisors (12).

12684444 is a modest number, since divided by 4444 gives 1268 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12684449) 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, 528507 + ... + 528530.

It is an arithmetic number, because the mean of its divisors is an integer number (2466422).

Almost surely, 2^12684444 is an apocalyptic number.

It is an amenable number.

12684444 is an abundant number, since it is smaller than the sum of its proper divisors (16912620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12684444 is a wasteful number, since it uses less digits than its factorization.

12684444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1057044 (or 1057042 counting only the distinct ones).

The product of its digits is 24576, while the sum is 33.

The square root of 12684444 is about 3561.5227080562. The cubic root of 12684444 is about 233.2153571399.

The spelling of 12684444 in words is "twelve million, six hundred eighty-four thousand, four hundred forty-four".