22440425042 has 24 divisors (see below), whose sum is σ = 40858701696. Its totient is φ = 9199179528.

The previous prime is 22440425009. The next prime is 22440425047. The reversal of 22440425042 is 24052404422.

It is a junction number, because it is equal to n+sod(n) for n = 22440424996 and 22440425014.

It is not an unprimeable number, because it can be changed into a prime (22440425047) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4975658 + ... + 4980165.

It is an arithmetic number, because the mean of its divisors is an integer number (1702445904).

Almost surely, 2^22440425042 is an apocalyptic number.

22440425042 is a deficient number, since it is larger than the sum of its proper divisors (18418276654).

22440425042 is a wasteful number, since it uses less digits than its factorization.

22440425042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9955862 (or 9955855 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 29.

Adding to 22440425042 its reverse (24052404422), we get a palindrome (46492829464).

The spelling of 22440425042 in words is "twenty-two billion, four hundred forty million, four hundred twenty-five thousand, forty-two".