22004332 has 36 divisors (see below), whose sum is σ = 45189144. Its totient is φ = 9347520.

The previous prime is 22004329. The next prime is 22004363. The reversal of 22004332 is 23340022.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 25248 + ... + 26104.

It is an arithmetic number, because the mean of its divisors is an integer number (1255254).

Almost surely, 2^22004332 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22004332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22594572).

22004332 is an abundant number, since it is smaller than the sum of its proper divisors (23184812).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22004332 is a wasteful number, since it uses less digits than its factorization.

22004332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1006 (or 997 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 22004332 is about 4690.8775298445. The cubic root of 22004332 is about 280.2223234258. Note that the first 3 decimals are identical.

Adding to 22004332 its reverse (23340022), we get a palindrome (45344354).

The spelling of 22004332 in words is "twenty-two million, four thousand, three hundred thirty-two".