22208604 has 24 divisors (see below), whose sum is σ = 56531328. Its totient is φ = 6729840.

The previous prime is 22208573. The next prime is 22208609. The reversal of 22208604 is 40680222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22208609) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 83992 + ... + 84255.

It is an arithmetic number, because the mean of its divisors is an integer number (2355472).

Almost surely, 2^22208604 is an apocalyptic number.

It is an amenable number.

22208604 is an abundant number, since it is smaller than the sum of its proper divisors (34322724).

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

22208604 is a wasteful number, since it uses less digits than its factorization.

22208604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168265 (or 168263 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 22208604 is about 4712.6005559563. The cubic root of 22208604 is about 281.0867797645.

Adding to 22208604 its reverse (40680222), we get a palindrome (62888826).

The spelling of 22208604 in words is "twenty-two million, two hundred eight thousand, six hundred four".