22163804 has 24 divisors (see below), whose sum is σ = 43970640. Its totient is φ = 9690624.

The previous prime is 22163803. The next prime is 22163807. The reversal of 22163804 is 40836122.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22163803) 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, 10229 + ... + 12204.

It is an arithmetic number, because the mean of its divisors is an integer number (1832110).

Almost surely, 2^22163804 is an apocalyptic number.

It is an amenable number.

22163804 is a deficient number, since it is larger than the sum of its proper divisors (21806836).

22163804 is a wasteful number, since it uses less digits than its factorization.

22163804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22469 (or 22467 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 22163804 is about 4707.8449422214. The cubic root of 22163804 is about 280.8976463891.

Adding to 22163804 its reverse (40836122), we get a palindrome (62999926).

The spelling of 22163804 in words is "twenty-two million, one hundred sixty-three thousand, eight hundred four".