16244226 has 40 divisors (see below), whose sum is σ = 36655740. Its totient is φ = 5376672.

The previous prime is 16244219. The next prime is 16244243. The reversal of 16244226 is 62244261.

It can be written as a sum of positive squares in 2 ways, for example, as 12638025 + 3606201 = 3555^2 + 1899^2 .

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 16244226.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 31660 + ... + 32168.

Almost surely, 2^16244226 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16244226, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18327870).

16244226 is an abundant number, since it is smaller than the sum of its proper divisors (20411514).

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

16244226 is a wasteful number, since it uses less digits than its factorization.

16244226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720 (or 711 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

The square root of 16244226 is about 4030.4126339619. The cubic root of 16244226 is about 253.2598474914.

Adding to 16244226 its reverse (62244261), we get a palindrome (78488487).

The spelling of 16244226 in words is "sixteen million, two hundred forty-four thousand, two hundred twenty-six".