22004404442 has 8 divisors (see below), whose sum is σ = 33008206836. Its totient is φ = 11001668832.

The previous prime is 22004404441. The next prime is 22004404453. The reversal of 22004404442 is 24440440022.

It can be written as a sum of positive squares in 2 ways, for example, as 21999119041 + 5285401 = 148321^2 + 2299^2 .

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

It is not an unprimeable number, because it can be changed into a prime (22004404441) 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, 212963 + ... + 298934.

Almost surely, 2^22004404442 is an apocalyptic number.

22004404442 is a deficient number, since it is larger than the sum of its proper divisors (11003802394).

22004404442 is a wasteful number, since it uses less digits than its factorization.

22004404442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533392.

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

Adding to 22004404442 its reverse (24440440022), we get a palindrome (46444844464).

The spelling of 22004404442 in words is "twenty-two billion, four million, four hundred four thousand, four hundred forty-two".