12406266 has 12 divisors (see below), whose sum is σ = 26880282. Its totient is φ = 4135416.

The previous prime is 12406253. The next prime is 12406267. The reversal of 12406266 is 66260421.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 9090225 + 3316041 = 3015^2 + 1821^2 .

It is not an unprimeable number, because it can be changed into a prime (12406267) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 344601 + ... + 344636.

Almost surely, 2^12406266 is an apocalyptic number.

12406266 is an abundant number, since it is smaller than the sum of its proper divisors (14474016).

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

12406266 is a wasteful number, since it uses less digits than its factorization.

12406266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 689245 (or 689242 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 12406266 is about 3522.2529721756. The cubic root of 12406266 is about 231.4978860245.

Adding to 12406266 its reverse (66260421), we get a palindrome (78666687).

The spelling of 12406266 in words is "twelve million, four hundred six thousand, two hundred sixty-six".