22204506 has 8 divisors (see below), whose sum is σ = 44409024. Its totient is φ = 7401500.

The previous prime is 22204471. The next prime is 22204513. The reversal of 22204506 is 60540222.

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

22204506 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1850370 + ... + 1850381.

It is an arithmetic number, because the mean of its divisors is an integer number (5551128).

Almost surely, 2^22204506 is an apocalyptic number.

22204506 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

22204506 is a wasteful number, since it uses less digits than its factorization.

22204506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3700756.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 22204506 is about 4712.1657441138. The cubic root of 22204506 is about 281.0694897015.

Adding to 22204506 its reverse (60540222), we get a palindrome (82744728).

The spelling of 22204506 in words is "twenty-two million, two hundred four thousand, five hundred six".