12228794 has 4 divisors (see below), whose sum is σ = 18343194. Its totient is φ = 6114396.

The previous prime is 12228793. The next prime is 12228809. The reversal of 12228794 is 49782221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 9078169 + 3150625 = 3013^2 + 1775^2 .

It is not an unprimeable number, because it can be changed into a prime (12228793) by changing a digit.

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 as a sum of consecutive naturals, namely, 3057197 + ... + 3057200.

Almost surely, 2^12228794 is an apocalyptic number.

12228794 is a deficient number, since it is larger than the sum of its proper divisors (6114400).

12228794 is an equidigital number, since it uses as much as digits as its factorization.

12228794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6114399.

The product of its digits is 16128, while the sum is 35.

The square root of 12228794 is about 3496.9692592301. The cubic root of 12228794 is about 230.3887188447.

The spelling of 12228794 in words is "twelve million, two hundred twenty-eight thousand, seven hundred ninety-four".