16222224 has 40 divisors (see below), whose sum is σ = 42934752. Its totient is φ = 5274880.

The previous prime is 16222211. The next prime is 16222259. The reversal of 16222224 is 42222261.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 16222224.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2154 + ... + 6089.

Almost surely, 2^16222224 is an apocalyptic number.

It is an amenable number.

16222224 is an abundant number, since it is smaller than the sum of its proper divisors (26712528).

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

16222224 is a wasteful number, since it uses less digits than its factorization.

16222224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8295 (or 8289 counting only the distinct ones).

The product of its digits is 768, while the sum is 21.

The square root of 16222224 is about 4027.6822118931. The cubic root of 16222224 is about 253.1454531865.

Adding to 16222224 its reverse (42222261), we get a palindrome (58444485).

The spelling of 16222224 in words is "sixteen million, two hundred twenty-two thousand, two hundred twenty-four".