22404127 has 4 divisors (see below), whose sum is σ = 22415536. Its totient is φ = 22392720.

The previous prime is 22404119. The next prime is 22404131. The reversal of 22404127 is 72140422.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 72140422 = 2 ⋅36070211.

It is a cyclic number.

It is not a de Polignac number, because 22404127 - 2³ = 22404119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22404098 and 22404107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22404427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1923 + ... + 6964.

It is an arithmetic number, because the mean of its divisors is an integer number (5603884).

Almost surely, 2^22404127 is an apocalyptic number.

22404127 is a deficient number, since it is larger than the sum of its proper divisors (11409).

22404127 is an equidigital number, since it uses as much as digits as its factorization.

22404127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11408.

The product of its (nonzero) digits is 896, while the sum is 22.

The square root of 22404127 is about 4733.2998003507. The cubic root of 22404127 is about 281.9092602444.

Adding to 22404127 its reverse (72140422), we get a palindrome (94544549).

The spelling of 22404127 in words is "twenty-two million, four hundred four thousand, one hundred twenty-seven".