22404440042 has 8 divisors (see below), whose sum is σ = 34765510500. Its totient is φ = 10815936544.

The previous prime is 22404439997. The next prime is 22404440077. The reversal of 22404440042 is 24004440422.

It can be written as a sum of positive squares in 2 ways, for example, as 22222163041 + 182277001 = 149071^2 + 13501^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 22404439993 and 22404440020.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193141667 + ... + 193141782.

Almost surely, 2^22404440042 is an apocalyptic number.

22404440042 is a deficient number, since it is larger than the sum of its proper divisors (12361070458).

22404440042 is a wasteful number, since it uses less digits than its factorization.

22404440042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386283480.

The product of its (nonzero) digits is 8192, while the sum is 26.

Adding to 22404440042 its reverse (24004440422), we get a palindrome (46408880464).

The spelling of 22404440042 in words is "twenty-two billion, four hundred four million, four hundred forty thousand, forty-two".