22442516 has 12 divisors (see below), whose sum is σ = 41584788. Its totient is φ = 10561152.

The previous prime is 22442513. The next prime is 22442561. The reversal of 22442516 is 61524422.

It can be written as a sum of positive squares in 2 ways, for example, as 14032516 + 8410000 = 3746^2 + 2900^2 .

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22442513) 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, 164951 + ... + 165086.

It is an arithmetic number, because the mean of its divisors is an integer number (3465399).

Almost surely, 2^22442516 is an apocalyptic number.

It is an amenable number.

22442516 is a deficient number, since it is larger than the sum of its proper divisors (19142272).

22442516 is a wasteful number, since it uses less digits than its factorization.

22442516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330058 (or 330056 counting only the distinct ones).

The product of its digits is 3840, while the sum is 26.

The square root of 22442516 is about 4737.3532694955. The cubic root of 22442516 is about 282.0701835609.

Adding to 22442516 its reverse (61524422), we get a palindrome (83966938).

The spelling of 22442516 in words is "twenty-two million, four hundred forty-two thousand, five hundred sixteen".