22108616 has 8 divisors (see below), whose sum is σ = 41453670. Its totient is φ = 11054304.

The previous prime is 22108613. The next prime is 22108631. The reversal of 22108616 is 61680122.

It can be written as a sum of positive squares in only one way, i.e., 21659716 + 448900 = 4654^2 + 670^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (22108613) 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 as a sum of consecutive naturals, namely, 1381781 + ... + 1381796.

Almost surely, 2^22108616 is an apocalyptic number.

It is an amenable number.

22108616 is a deficient number, since it is larger than the sum of its proper divisors (19345054).

22108616 is a wasteful number, since it uses less digits than its factorization.

22108616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2763583 (or 2763579 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 22108616 is about 4701.9800084645. The cubic root of 22108616 is about 280.6643070222.

Adding to 22108616 its reverse (61680122), we get a palindrome (83788738).

The spelling of 22108616 in words is "twenty-two million, one hundred eight thousand, six hundred sixteen".