12340422 has 24 divisors (see below), whose sum is σ = 27178320. Its totient is φ = 4045680.

The previous prime is 12340421. The next prime is 12340423. The reversal of 12340422 is 22404321.

12340422 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12340421) and next prime (12340423).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12340395 and 12340404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12340421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4522 + ... + 6717.

It is an arithmetic number, because the mean of its divisors is an integer number (1132430).

Almost surely, 2^12340422 is an apocalyptic number.

12340422 is an abundant number, since it is smaller than the sum of its proper divisors (14837898).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12340422 is a wasteful number, since it uses less digits than its factorization.

12340422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11308 (or 11305 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 12340422 is about 3512.8936790060. The cubic root of 12340422 is about 231.0876150471.

Adding to 12340422 its reverse (22404321), we get a palindrome (34744743).

The spelling of 12340422 in words is "twelve million, three hundred forty thousand, four hundred twenty-two".