16222208 has 36 divisors (see below), whose sum is σ = 32805045. Its totient is φ = 8019968.

The previous prime is 16222127. The next prime is 16222211. The reversal of 16222208 is 80222261.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 14500864 + 1721344 = 3808^2 + 1312^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=2848.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 182228 + ... + 182316.

Almost surely, 2^16222208 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16222208

16222208 is an abundant number, since it is smaller than the sum of its proper divisors (16582837).

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

16222208 is an frugal number, since it uses more digits than its factorization.

16222208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200 (or 91 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 16222208 is about 4027.6802256386. The cubic root of 16222208 is about 253.1453699606.

Adding to 16222208 its reverse (80222261), we get a palindrome (96444469).

The spelling of 16222208 in words is "sixteen million, two hundred twenty-two thousand, two hundred eight".