12406423 has 4 divisors (see below), whose sum is σ = 12576448. Its totient is φ = 12236400.

The previous prime is 12406421. The next prime is 12406441. The reversal of 12406423 is 32460421.

It is a happy number.

12406423 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12406423 - 2¹ = 12406421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12406394 and 12406403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12406421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84903 + ... + 85048.

It is an arithmetic number, because the mean of its divisors is an integer number (3144112).

Almost surely, 2^12406423 is an apocalyptic number.

12406423 is a deficient number, since it is larger than the sum of its proper divisors (170025).

12406423 is an equidigital number, since it uses as much as digits as its factorization.

12406423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170024.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 12406423 is about 3522.2752589768. The cubic root of 12406423 is about 231.4988625476.

Adding to 12406423 its reverse (32460421), we get a palindrome (44866844).

The spelling of 12406423 in words is "twelve million, four hundred six thousand, four hundred twenty-three".