16223226 has 32 divisors (see below), whose sum is σ = 34516800. Its totient is φ = 5068800.

The previous prime is 16223213. The next prime is 16223239. The reversal of 16223226 is 62232261.

16223226 = 424² + 425² + ... + 499².

It is an interprime number because it is at equal distance from previous prime (16223213) and next prime (16223239).

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

It is a junction number, because it is equal to n+sod(n) for n = 16223196 and 16223205.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10810 + ... + 12218.

It is an arithmetic number, because the mean of its divisors is an integer number (1078650).

Almost surely, 2^16223226 is an apocalyptic number.

16223226 is an abundant number, since it is smaller than the sum of its proper divisors (18293574).

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

16223226 is a wasteful number, since it uses less digits than its factorization.

16223226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1534.

The product of its digits is 1728, while the sum is 24.

The square root of 16223226 is about 4027.8065991306. The cubic root of 16223226 is about 253.1506651007.

Adding to 16223226 its reverse (62232261), we get a palindrome (78455487).

The spelling of 16223226 in words is "sixteen million, two hundred twenty-three thousand, two hundred twenty-six".