13622216 has 16 divisors (see below), whose sum is σ = 26232540. Its totient is φ = 6626880.

The previous prime is 13622177. The next prime is 13622269. The reversal of 13622216 is 61222631.

It can be written as a sum of positive squares in 2 ways, for example, as 9897316 + 3724900 = 3146^2 + 1930^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13622191 and 13622200.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22715 + ... + 23306.

Almost surely, 2^13622216 is an apocalyptic number.

It is an amenable number.

13622216 is a deficient number, since it is larger than the sum of its proper divisors (12610324).

13622216 is a wasteful number, since it uses less digits than its factorization.

13622216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46064 (or 46060 counting only the distinct ones).

The product of its digits is 864, while the sum is 23.

The square root of 13622216 is about 3690.8286332476. The cubic root of 13622216 is about 238.8265403380.

Adding to 13622216 its reverse (61222631), we get a palindrome (74844847).

It can be divided in two parts, 13 and 622216, that multiplied together give a palindrome (8088808).

The spelling of 13622216 in words is "thirteen million, six hundred twenty-two thousand, two hundred sixteen".