22004533 has 8 divisors (see below), whose sum is σ = 23086080. Its totient is φ = 20944560.

The previous prime is 22004497. The next prime is 22004539. The reversal of 22004533 is 33540022.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22004533 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22004533.

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 7 ways as a sum of consecutive naturals, for example, 3285 + ... + 7402.

It is an arithmetic number, because the mean of its divisors is an integer number (2885760).

Almost surely, 2^22004533 is an apocalyptic number.

It is an amenable number.

22004533 is a deficient number, since it is larger than the sum of its proper divisors (1081547).

22004533 is a wasteful number, since it uses less digits than its factorization.

22004533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10787.

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 22004533 is about 4690.8989543583. The cubic root of 22004533 is about 280.2231766595.

Adding to 22004533 its reverse (33540022), we get a palindrome (55544555).

The spelling of 22004533 in words is "twenty-two million, four thousand, five hundred thirty-three".