22042756 has 12 divisors (see below), whose sum is σ = 38612700. Its totient is φ = 11010560.

The previous prime is 22042751. The next prime is 22042771. The reversal of 22042756 is 65724022.

It can be written as a sum of positive squares in 2 ways, for example, as 4536900 + 17505856 = 2130^2 + 4184^2 .

It is not an unprimeable number, because it can be changed into a prime (22042751) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3420 + ... + 7468.

It is an arithmetic number, because the mean of its divisors is an integer number (3217725).

Almost surely, 2^22042756 is an apocalyptic number.

It is an amenable number.

22042756 is a deficient number, since it is larger than the sum of its proper divisors (16569944).

22042756 is a wasteful number, since it uses less digits than its factorization.

22042756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5414 (or 5412 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 22042756 is about 4694.9713524153. The cubic root of 22042756 is about 280.3853368021.

Adding to 22042756 its reverse (65724022), we get a palindrome (87766778).

The spelling of 22042756 in words is "twenty-two million, forty-two thousand, seven hundred fifty-six".