16109226 has 64 divisors (see below), whose sum is σ = 43084800. Its totient is φ = 4358448.

The previous prime is 16109179. The next prime is 16109257. The reversal of 16109226 is 62290161.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 16109226.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6061 + ... + 8303.

It is an arithmetic number, because the mean of its divisors is an integer number (673200).

Almost surely, 2^16109226 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16109226, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21542400).

16109226 is an abundant number, since it is smaller than the sum of its proper divisors (26975574).

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

16109226 is a wasteful number, since it uses less digits than its factorization.

16109226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2280 (or 2274 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 16109226 is about 4013.6300277928. The cubic root of 16109226 is about 252.5563106774.

Adding to 16109226 its reverse (62290161), we get a palindrome (78399387).

The spelling of 16109226 in words is "sixteen million, one hundred nine thousand, two hundred twenty-six".