22004530 has 16 divisors (see below), whose sum is σ = 40258584. Its totient is φ = 8657280.

The previous prime is 22004497. The next prime is 22004539. The reversal of 22004530 is 3540022.

It can be written as a sum of positive squares in 4 ways, for example, as 16654561 + 5349969 = 4081^2 + 2313^2 .

It is not an unprimeable number, because it can be changed into a prime (22004539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17427 + ... + 18646.

Almost surely, 2^22004530 is an apocalyptic number.

22004530 is a deficient number, since it is larger than the sum of its proper divisors (18254054).

22004530 is a wasteful number, since it uses less digits than its factorization.

22004530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36141.

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 22004530 is about 4690.8986345902. The cubic root of 22004530 is about 280.2231639247.

Adding to 22004530 its reverse (3540022), we get a palindrome (25544552).

The spelling of 22004530 in words is "twenty-two million, four thousand, five hundred thirty".