22400144423 has 4 divisors (see below), whose sum is σ = 22400444400. Its totient is φ = 22399844448.

The previous prime is 22400144369. The next prime is 22400144443. The reversal of 22400144423 is 32444100422.

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.

It is a cyclic number.

It is not a de Polignac number, because 22400144423 - 2⁸ = 22400144167 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22400144392 and 22400144401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22400144443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60278 + ... + 220076.

It is an arithmetic number, because the mean of its divisors is an integer number (5600111100).

Almost surely, 2^22400144423 is an apocalyptic number.

22400144423 is a deficient number, since it is larger than the sum of its proper divisors (299977).

22400144423 is a wasteful number, since it uses less digits than its factorization.

22400144423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299976.

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 22400144423 its reverse (32444100422), we get a palindrome (54844244845).

The spelling of 22400144423 in words is "twenty-two billion, four hundred million, one hundred forty-four thousand, four hundred twenty-three".