12443631 has 16 divisors (see below), whose sum is σ = 17001600. Its totient is φ = 8093088.

The previous prime is 12443611. The next prime is 12443633. The reversal of 12443631 is 13634421.

12443631 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12443631 - 2¹⁰ = 12442607 is a prime.

It is a super-2 number, since 2×12443631² = 309687904928322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12443633) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40380 + ... + 40686.

It is an arithmetic number, because the mean of its divisors is an integer number (1062600).

Almost surely, 2^12443631 is an apocalyptic number.

12443631 is a deficient number, since it is larger than the sum of its proper divisors (4557969).

12443631 is a wasteful number, since it uses less digits than its factorization.

12443631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 598.

The product of its digits is 1728, while the sum is 24.

The square root of 12443631 is about 3527.5531179558. The cubic root of 12443631 is about 231.7300603445.

The spelling of 12443631 in words is "twelve million, four hundred forty-three thousand, six hundred thirty-one".