2185228 has 12 divisors (see below), whose sum is σ = 4025560. Its totient is φ = 1035072.

The previous prime is 2185201. The next prime is 2185241. The reversal of 2185228 is 8225812.

It is a junction number, because it is equal to n+sod(n) for n = 2185196 and 2185205.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14301 + ... + 14452.

2^2185228 is an apocalyptic number.

It is an amenable number.

2185228 is a deficient number, since it is larger than the sum of its proper divisors (1840332).

2185228 is a wasteful number, since it uses less digits than its factorization.

2185228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28776 (or 28774 counting only the distinct ones).

The product of its digits is 2560, while the sum is 28.

The square root of 2185228 is about 1478.2516700481. The cubic root of 2185228 is about 129.7673947051.

The spelling of 2185228 in words is "two million, one hundred eighty-five thousand, two hundred twenty-eight".