22043804 has 24 divisors (see below), whose sum is σ = 39664128. Its totient is φ = 10715760.

The previous prime is 22043789. The next prime is 22043807. The reversal of 22043804 is 40834022.

It is a self number, because there is not a number n which added to its sum of digits gives 22043804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22043807) 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, 21749 + ... + 22739.

It is an arithmetic number, because the mean of its divisors is an integer number (1652672).

Almost surely, 2^22043804 is an apocalyptic number.

It is an amenable number.

22043804 is a deficient number, since it is larger than the sum of its proper divisors (17620324).

22043804 is a wasteful number, since it uses less digits than its factorization.

22043804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1145 (or 1143 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 22043804 is about 4695.0829598634. The cubic root of 22043804 is about 280.3897802751.

Adding to 22043804 its reverse (40834022), we get a palindrome (62877826).

The spelling of 22043804 in words is "twenty-two million, forty-three thousand, eight hundred four".