22163404 has 12 divisors (see below), whose sum is σ = 39688264. Its totient is φ = 10823904.

The previous prime is 22163377. The next prime is 22163413. The reversal of 22163404 is 40436122.

It is a happy number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 64257 + ... + 64600.

Almost surely, 2^22163404 is an apocalyptic number.

It is an amenable number.

22163404 is a deficient number, since it is larger than the sum of its proper divisors (17524860).

22163404 is a wasteful number, since it uses less digits than its factorization.

22163404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128904 (or 128902 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 22163404 is about 4707.8024597470. The cubic root of 22163404 is about 280.8959565508.

Adding to 22163404 its reverse (40436122), we get a palindrome (62599526).

The spelling of 22163404 in words is "twenty-two million, one hundred sixty-three thousand, four hundred four".