12340426 has 16 divisors (see below), whose sum is σ = 21672000. Its totient is φ = 5159520.

The previous prime is 12340423. The next prime is 12340429. The reversal of 12340426 is 62404321.

It is a happy number.

12340426 is digitally balanced in base 2 and base 8, because in such bases 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 (12340423) and next prime (12340429).

It is a super-2 number, since 2×12340426² = 304572227722952, which contains 22 as substring.

12340426 is strictly pandigital in base 8.

It is a junction number, because it is equal to n+sod(n) for n = 12340397 and 12340406.

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 7 ways as a sum of consecutive naturals, for example, 10176 + ... + 11323.

It is an arithmetic number, because the mean of its divisors is an integer number (1354500).

Almost surely, 2^12340426 is an apocalyptic number.

12340426 is a deficient number, since it is larger than the sum of its proper divisors (9331574).

12340426 is a wasteful number, since it uses less digits than its factorization.

12340426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21549.

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

The square root of 12340426 is about 3512.8942483371. The cubic root of 12340426 is about 231.0876400152.

Adding to 12340426 its reverse (62404321), we get a palindrome (74744747).

The spelling of 12340426 in words is "twelve million, three hundred forty thousand, four hundred twenty-six".