12904226 has 8 divisors (see below), whose sum is σ = 19768320. Its totient is φ = 6314788.

The previous prime is 12904223. The next prime is 12904237. The reversal of 12904226 is 62240921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 12904195 and 12904204.

It is not an unprimeable number, because it can be changed into a prime (12904223) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 68546 + ... + 68733.

It is an arithmetic number, because the mean of its divisors is an integer number (2471040).

Almost surely, 2^12904226 is an apocalyptic number.

12904226 is a deficient number, since it is larger than the sum of its proper divisors (6864094).

12904226 is a wasteful number, since it uses less digits than its factorization.

12904226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137328.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 12904226 is about 3592.2452588875. The cubic root of 12904226 is about 234.5546174170.

The spelling of 12904226 in words is "twelve million, nine hundred four thousand, two hundred twenty-six".