16777222 has 16 divisors (see below), whose sum is σ = 31375872. Its totient is φ = 6536520.

The previous prime is 16777213. The next prime is 16777259. The reversal of 16777222 is 22277761.

It is a congruent number.

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, 54318 + ... + 54625.

It is an arithmetic number, because the mean of its divisors is an integer number (1960992).

Almost surely, 2^16777222 is an apocalyptic number.

16777222 is a deficient number, since it is larger than the sum of its proper divisors (14598650).

16777222 is a wasteful number, since it uses less digits than its factorization.

16777222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108963.

The product of its digits is 16464, while the sum is 34.

The square root of 16777222 is about 4096.0007324218. Note that the first 3 decimals coincide. The cubic root of 16777222 is about 256.0000305176. Note that the first 4 decimals are identical.

The spelling of 16777222 in words is "sixteen million, seven hundred seventy-seven thousand, two hundred twenty-two".