12426444 has 36 divisors (see below), whose sum is σ = 32181240. Its totient is φ = 4040640.

The previous prime is 12426431. The next prime is 12426481. The reversal of 12426444 is 44462421.

It is a happy number.

12426444 is a `hidden beast` number, since 12 + 4 + 2 + 644 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2734 + ... + 5685.

Almost surely, 2^12426444 is an apocalyptic number.

It is an amenable number.

12426444 is an abundant number, since it is smaller than the sum of its proper divisors (19754796).

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

12426444 is a wasteful number, since it uses less digits than its factorization.

12426444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8470 (or 8465 counting only the distinct ones).

The product of its digits is 6144, while the sum is 27.

The square root of 12426444 is about 3525.1161682986. The cubic root of 12426444 is about 231.6233235569.

Adding to 12426444 its reverse (44462421), we get a palindrome (56888865).

The spelling of 12426444 in words is "twelve million, four hundred twenty-six thousand, four hundred forty-four".