22016916 has 36 divisors (see below), whose sum is σ = 57575700. Its totient is φ = 7085568.

The previous prime is 22016893. The next prime is 22016941. The reversal of 22016916 is 61961022.

It can be written as a sum of positive squares in 2 ways, for example, as 18096516 + 3920400 = 4254^2 + 1980^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 22016916.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9501 + ... + 11588.

It is an arithmetic number, because the mean of its divisors is an integer number (1599325).

Almost surely, 2^22016916 is an apocalyptic number.

It is an amenable number.

22016916 is an abundant number, since it is smaller than the sum of its proper divisors (35558784).

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

22016916 is a wasteful number, since it uses less digits than its factorization.

22016916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21128 (or 21123 counting only the distinct ones).

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

The square root of 22016916 is about 4692.2186649814. The cubic root of 22016916 is about 280.2757317836.

Adding to 22016916 its reverse (61961022), we get a palindrome (83977938).

The spelling of 22016916 in words is "twenty-two million, sixteen thousand, nine hundred sixteen".