16866228 has 24 divisors (see below), whose sum is σ = 40419232. Its totient is φ = 5469984.

The previous prime is 16866221. The next prime is 16866229. The reversal of 16866228 is 82266861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16866221) 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 7 ways as a sum of consecutive naturals, for example, 18550 + ... + 19437.

Almost surely, 2^16866228 is an apocalyptic number.

It is an amenable number.

16866228 is an abundant number, since it is smaller than the sum of its proper divisors (23553004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16866228 is a wasteful number, since it uses less digits than its factorization.

16866228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38031 (or 38029 counting only the distinct ones).

The product of its digits is 55296, while the sum is 39.

The square root of 16866228 is about 4106.8513486612. The cubic root of 16866228 is about 256.4519401234.

The spelling of 16866228 in words is "sixteen million, eight hundred sixty-six thousand, two hundred twenty-eight".