16777228 has 24 divisors (see below), whose sum is σ = 33284720. Its totient is φ = 7335360.

The previous prime is 16777213. The next prime is 16777259. The reversal of 16777228 is 82277761.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (3) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7503 + ... + 9478.

Almost surely, 2^16777228 is an apocalyptic number.

It is an amenable number.

16777228 is a deficient number, since it is larger than the sum of its proper divisors (16507492).

16777228 is a wasteful number, since it uses less digits than its factorization.

16777228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17017 (or 17015 counting only the distinct ones).

The product of its digits is 65856, while the sum is 40.

The square root of 16777228 is about 4096.0014648435. The cubic root of 16777228 is about 256.0000610351. Note that the first 4 decimals are identical.

The spelling of 16777228 in words is "sixteen million, seven hundred seventy-seven thousand, two hundred twenty-eight".