22004534 has 8 divisors (see below), whose sum is σ = 33244680. Its totient is φ = 10922976.

The previous prime is 22004497. The next prime is 22004539. The reversal of 22004534 is 43540022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22004539) 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, 39299 + ... + 39854.

It is an arithmetic number, because the mean of its divisors is an integer number (4155585).

Almost surely, 2^22004534 is an apocalyptic number.

22004534 is a deficient number, since it is larger than the sum of its proper divisors (11240146).

22004534 is a wasteful number, since it uses less digits than its factorization.

22004534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79294.

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 22004534 is about 4690.8990609477. The cubic root of 22004534 is about 280.2231809044.

Adding to 22004534 its reverse (43540022), we get a palindrome (65544556).

The spelling of 22004534 in words is "twenty-two million, four thousand, five hundred thirty-four".