16805222 has 8 divisors (see below), whose sum is σ = 28808976. Its totient is φ = 7202232.

The previous prime is 16805221. The next prime is 16805251. The reversal of 16805222 is 22250861.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 16805191 and 16805200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16805221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 600173 + ... + 600200.

It is an arithmetic number, because the mean of its divisors is an integer number (3601122).

Almost surely, 2^16805222 is an apocalyptic number.

16805222 is a deficient number, since it is larger than the sum of its proper divisors (12003754).

16805222 is a wasteful number, since it uses less digits than its factorization.

16805222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1200382.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 16805222 is about 4099.4172756625. The cubic root of 16805222 is about 256.1423666945.

The spelling of 16805222 in words is "sixteen million, eight hundred five thousand, two hundred twenty-two".