12342406 has 4 divisors (see below), whose sum is σ = 18513612. Its totient is φ = 6171202.

The previous prime is 12342389. The next prime is 12342409. The reversal of 12342406 is 60424321.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60424321 = 317 ⋅190613.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12342409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3085600 + ... + 3085603.

It is an arithmetic number, because the mean of its divisors is an integer number (4628403).

Almost surely, 2^12342406 is an apocalyptic number.

12342406 is a deficient number, since it is larger than the sum of its proper divisors (6171206).

12342406 is an equidigital number, since it uses as much as digits as its factorization.

12342406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6171205.

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

The square root of 12342406 is about 3513.1760559357. The cubic root of 12342406 is about 231.0999985582.

Adding to 12342406 its reverse (60424321), we get a palindrome (72766727).

The spelling of 12342406 in words is "twelve million, three hundred forty-two thousand, four hundred six".