22207604 has 24 divisors (see below), whose sum is σ = 40790400. Its totient is φ = 10558944.

The previous prime is 22207597. The next prime is 22207607. The reversal of 22207604 is 40670222.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a self number, because there is not a number n which added to its sum of digits gives 22207604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22207607) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 17702 + ... + 18914.

It is an arithmetic number, because the mean of its divisors is an integer number (1699600).

Almost surely, 2^22207604 is an apocalyptic number.

It is an amenable number.

22207604 is a deficient number, since it is larger than the sum of its proper divisors (18582796).

22207604 is a wasteful number, since it uses less digits than its factorization.

22207604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1439 (or 1437 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 22207604 is about 4712.4944562302. The cubic root of 22207604 is about 281.0825608140.

Adding to 22207604 its reverse (40670222), we get a palindrome (62877826).

The spelling of 22207604 in words is "twenty-two million, two hundred seven thousand, six hundred four".