12228896 has 24 divisors (see below), whose sum is σ = 24161004. Its totient is φ = 6092800.

The previous prime is 12228889. The next prime is 12228901. The reversal of 12228896 is 69882221.

It can be written as a sum of positive squares in 2 ways, for example, as 11155600 + 1073296 = 3340^2 + 1036^2 .

It is a nialpdrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12356 + ... + 13308.

Almost surely, 2^12228896 is an apocalyptic number.

12228896 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12228896 is a deficient number, since it is larger than the sum of its proper divisors (11932108).

12228896 is an equidigital number, since it uses as much as digits as its factorization.

12228896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1364 (or 1356 counting only the distinct ones).

The product of its digits is 27648, while the sum is 38.

The square root of 12228896 is about 3496.9838432569. The cubic root of 12228896 is about 230.3893593980.

The spelling of 12228896 in words is "twelve million, two hundred twenty-eight thousand, eight hundred ninety-six".