12438223 has 18 divisors (see below), whose sum is σ = 15037992. Its totient is φ = 10077480.

The previous prime is 12438197. The next prime is 12438227. The reversal of 12438223 is 32283421.

12438223 is nontrivially palindromic in base 6.

It is not a de Polignac number, because 12438223 - 2⁵ = 12438191 is a prime.

It is a Duffinian number.

It is a zygodrome in base 6.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12438227) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 289240 + ... + 289282.

It is an arithmetic number, because the mean of its divisors is an integer number (835444).

Almost surely, 2^12438223 is an apocalyptic number.

12438223 is a deficient number, since it is larger than the sum of its proper divisors (2599769).

12438223 is an frugal number, since it uses more digits than its factorization.

12438223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155 (or 81 counting only the distinct ones).

The product of its digits is 2304, while the sum is 25.

The square root of 12438223 is about 3526.7864976491. The cubic root of 12438223 is about 231.6964855314.

The spelling of 12438223 in words is "twelve million, four hundred thirty-eight thousand, two hundred twenty-three".