22424401 has 4 divisors (see below), whose sum is σ = 22461952. Its totient is φ = 22386852.

The previous prime is 22424383. The next prime is 22424429. The reversal of 22424401 is 10442422.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10442422 = 2 ⋅5221211.

It is a cyclic number.

It is not a de Polignac number, because 22424401 - 2⁷ = 22424273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22424491) 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, 17865 + ... + 19078.

It is an arithmetic number, because the mean of its divisors is an integer number (5615488).

Almost surely, 2^22424401 is an apocalyptic number.

It is an amenable number.

22424401 is a deficient number, since it is larger than the sum of its proper divisors (37551).

22424401 is an equidigital number, since it uses as much as digits as its factorization.

22424401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37550.

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

The square root of 22424401 is about 4735.4409509569. The cubic root of 22424401 is about 281.9942699572.

Adding to 22424401 its reverse (10442422), we get a palindrome (32866823).

The spelling of 22424401 in words is "twenty-two million, four hundred twenty-four thousand, four hundred one".