22104424 has 8 divisors (see below), whose sum is σ = 41445810. Its totient is φ = 11052208.

The previous prime is 22104389. The next prime is 22104427. The reversal of 22104424 is 42440122.

It can be written as a sum of positive squares in only one way, i.e., 21068100 + 1036324 = 4590^2 + 1018^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (22104427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1381519 + ... + 1381534.

Almost surely, 2^22104424 is an apocalyptic number.

It is an amenable number.

22104424 is a deficient number, since it is larger than the sum of its proper divisors (19341386).

22104424 is a wasteful number, since it uses less digits than its factorization.

22104424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2763059 (or 2763055 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 22104424 is about 4701.5342176783. The cubic root of 22104424 is about 280.6465670433.

Adding to 22104424 its reverse (42440122), we get a palindrome (64544546).

The spelling of 22104424 in words is "twenty-two million, one hundred four thousand, four hundred twenty-four".