11642216 has 16 divisors (see below), whose sum is σ = 22187940. Its totient is φ = 5725440.

The previous prime is 11642203. The next prime is 11642219. The reversal of 11642216 is 61224611.

It can be written as a sum of positive squares in 2 ways, for example, as 8145316 + 3496900 = 2854^2 + 1870^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11642191 and 11642200.

It is not an unprimeable number, because it can be changed into a prime (11642219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11441 + ... + 12416.

Almost surely, 2^11642216 is an apocalyptic number.

It is an amenable number.

11642216 is a deficient number, since it is larger than the sum of its proper divisors (10545724).

11642216 is a wasteful number, since it uses less digits than its factorization.

11642216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23924 (or 23920 counting only the distinct ones).

The product of its digits is 576, while the sum is 23.

The square root of 11642216 is about 3412.0691669425. The cubic root of 11642216 is about 226.6445172513.

Adding to 11642216 its reverse (61224611), we get a palindrome (72866827).

The spelling of 11642216 in words is "eleven million, six hundred forty-two thousand, two hundred sixteen".