12243426 has 16 divisors (see below), whose sum is σ = 26370624. Its totient is φ = 3767184.

The previous prime is 12243403. The next prime is 12243431. The reversal of 12243426 is 62434221.

It is a junction number, because it is equal to n+sod(n) for n = 12243396 and 12243405.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78406 + ... + 78561.

It is an arithmetic number, because the mean of its divisors is an integer number (1648164).

Almost surely, 2^12243426 is an apocalyptic number.

12243426 is an abundant number, since it is smaller than the sum of its proper divisors (14127198).

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

12243426 is a wasteful number, since it uses less digits than its factorization.

12243426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156985.

The product of its digits is 2304, while the sum is 24.

The square root of 12243426 is about 3499.0607311106. The cubic root of 12243426 is about 230.4805704783.

Adding to 12243426 its reverse (62434221), we get a palindrome (74677647).

The spelling of 12243426 in words is "twelve million, two hundred forty-three thousand, four hundred twenty-six".