12440444 has 12 divisors (see below), whose sum is σ = 21995904. Its totient is φ = 6155904.

The previous prime is 12440431. The next prime is 12440453. The reversal of 12440444 is 44404421.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15644 + ... + 16419.

It is an arithmetic number, because the mean of its divisors is an integer number (1832992).

Almost surely, 2^12440444 is an apocalyptic number.

It is an amenable number.

12440444 is a deficient number, since it is larger than the sum of its proper divisors (9555460).

12440444 is a wasteful number, since it uses less digits than its factorization.

12440444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32164 (or 32162 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 23.

The square root of 12440444 is about 3527.1013594735. The cubic root of 12440444 is about 231.7102754773.

Adding to 12440444 its reverse (44404421), we get a palindrome (56844865).

The spelling of 12440444 in words is "twelve million, four hundred forty thousand, four hundred forty-four".