12445443 has 6 divisors (see below), whose sum is σ = 17976764. Its totient is φ = 8296956.

The previous prime is 12445441. The next prime is 12445469. The reversal of 12445443 is 34454421.

It is a happy number.

It is not a de Polignac number, because 12445443 - 2¹ = 12445441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12445441) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 691405 + ... + 691422.

Almost surely, 2^12445443 is an apocalyptic number.

12445443 is a deficient number, since it is larger than the sum of its proper divisors (5531321).

12445443 is a wasteful number, since it uses less digits than its factorization.

12445443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1382833 (or 1382830 counting only the distinct ones).

The product of its digits is 7680, while the sum is 27.

The square root of 12445443 is about 3527.8099438604. The cubic root of 12445443 is about 231.7413077178.

Adding to 12445443 its reverse (34454421), we get a palindrome (46899864).

The spelling of 12445443 in words is "twelve million, four hundred forty-five thousand, four hundred forty-three".