22104401 has 6 divisors (see below), whose sum is σ = 24296706. Its totient is φ = 20094800.

The previous prime is 22104389. The next prime is 22104427. The reversal of 22104401 is 10440122.

It can be written as a sum of positive squares in only one way, i.e., 13987600 + 8116801 = 3740^2 + 2849^2 .

It is not a de Polignac number, because 22104401 - 2⁶ = 22104337 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22104431) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 91220 + ... + 91461.

It is an arithmetic number, because the mean of its divisors is an integer number (4049451).

Almost surely, 2^22104401 is an apocalyptic number.

It is an amenable number.

22104401 is a deficient number, since it is larger than the sum of its proper divisors (2192305).

22104401 is a wasteful number, since it uses less digits than its factorization.

22104401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182703 (or 182692 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 22104401 is about 4701.5317716676. The cubic root of 22104401 is about 280.6464697042.

Adding to 22104401 its reverse (10440122), we get a palindrome (32544523).

The spelling of 22104401 in words is "twenty-two million, one hundred four thousand, four hundred one".