12403226 has 24 divisors (see below), whose sum is σ = 20684160. Its totient is φ = 5573480.

The previous prime is 12403199. The next prime is 12403243. The reversal of 12403226 is 62230421.

It is a junction number, because it is equal to n+sod(n) for n = 12403198 and 12403207.

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 25655 + ... + 26133.

It is an arithmetic number, because the mean of its divisors is an integer number (861840).

Almost surely, 2^12403226 is an apocalyptic number.

12403226 is a deficient number, since it is larger than the sum of its proper divisors (8280934).

12403226 is a wasteful number, since it uses less digits than its factorization.

12403226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610 (or 599 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 12403226 is about 3521.8214037625. The cubic root of 12403226 is about 231.4789759280.

Adding to 12403226 its reverse (62230421), we get a palindrome (74633647).

The spelling of 12403226 in words is "twelve million, four hundred three thousand, two hundred twenty-six".