12810226 has 32 divisors (see below), whose sum is σ = 23079168. Its totient is φ = 5255040.

The previous prime is 12810211. The next prime is 12810229. The reversal of 12810226 is 62201821.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 12810197 and 12810206.

It is not an unprimeable number, because it can be changed into a prime (12810229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12966 + ... + 13918.

It is an arithmetic number, because the mean of its divisors is an integer number (721224).

Almost surely, 2^12810226 is an apocalyptic number.

12810226 is a deficient number, since it is larger than the sum of its proper divisors (10268942).

12810226 is a wasteful number, since it uses less digits than its factorization.

12810226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1026.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 12810226 is about 3579.1376056251. The cubic root of 12810226 is about 233.9836962367.

The spelling of 12810226 in words is "twelve million, eight hundred ten thousand, two hundred twenty-six".