22204444240 has 80 divisors (see below), whose sum is σ = 59282723520. Its totient is φ = 7649372160.

The previous prime is 22204444219. The next prime is 22204444247. The reversal of 22204444240 is 4244440222.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 22204444199 and 22204444208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22204444247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 647289 + ... + 680728.

It is an arithmetic number, because the mean of its divisors is an integer number (741034044).

Almost surely, 2^22204444240 is an apocalyptic number.

22204444240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22204444240 is an abundant number, since it is smaller than the sum of its proper divisors (37078279280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22204444240 is a wasteful number, since it uses less digits than its factorization.

22204444240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1328060 (or 1328054 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 22204444240 its reverse (4244440222), we get a palindrome (26448884462).

The spelling of 22204444240 in words is "twenty-two billion, two hundred four million, four hundred forty-four thousand, two hundred forty".