22424224240 has 80 divisors (see below), whose sum is σ = 56902536576. Its totient is φ = 8150457600.

The previous prime is 22424224217. The next prime is 22424224247. The reversal of 22424224240 is 4242242422.

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 = 22424224199 and 22424224208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22424224247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2462095 + ... + 2471185.

Almost surely, 2^22424224240 is an apocalyptic number.

22424224240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22424224240 is an abundant number, since it is smaller than the sum of its proper divisors (34478312336).

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

22424224240 is a wasteful number, since it uses less digits than its factorization.

22424224240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11918 (or 11912 counting only the distinct ones).

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

Adding to 22424224240 its reverse (4242242422), we get a palindrome (26666466662).

It can be divided in two parts, 2 and 2424224240, that added together give a palindrome (2424224242).

The spelling of 22424224240 in words is "twenty-two billion, four hundred twenty-four million, two hundred twenty-four thousand, two hundred forty".