22135604 has 6 divisors (see below), whose sum is σ = 38737314. Its totient is φ = 11067800.

The previous prime is 22135579. The next prime is 22135639. The reversal of 22135604 is 40653122.

It can be written as a sum of positive squares in only one way, i.e., 19891600 + 2244004 = 4460^2 + 1498^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22135604.

It is a congruent 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 as a sum of consecutive naturals, namely, 2766947 + ... + 2766954.

It is an arithmetic number, because the mean of its divisors is an integer number (6456219).

Almost surely, 2^22135604 is an apocalyptic number.

It is an amenable number.

22135604 is a deficient number, since it is larger than the sum of its proper divisors (16601710).

22135604 is a wasteful number, since it uses less digits than its factorization.

22135604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5533905 (or 5533903 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 22135604 is about 4704.8489880123. The cubic root of 22135604 is about 280.7784629440.

Adding to 22135604 its reverse (40653122), we get a palindrome (62788726).

The spelling of 22135604 in words is "twenty-two million, one hundred thirty-five thousand, six hundred four".