22424240242 has 8 divisors (see below), whose sum is σ = 33638295132. Its totient is φ = 11211475200.

The previous prime is 22424240207. The next prime is 22424240243. The reversal of 22424240242 is 24204242422.

It can be written as a sum of positive squares in 2 ways, for example, as 21567565881 + 856674361 = 146859^2 + 29269^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 22424240242.

It is not an unprimeable number, because it can be changed into a prime (22424240243) 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, 277759 + ... + 349282.

Almost surely, 2^22424240242 is an apocalyptic number.

22424240242 is a deficient number, since it is larger than the sum of its proper divisors (11214054890).

22424240242 is a wasteful number, since it uses less digits than its factorization.

22424240242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644924.

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

Adding to 22424240242 its reverse (24204242422), we get a palindrome (46628482664).

The spelling of 22424240242 in words is "twenty-two billion, four hundred twenty-four million, two hundred forty thousand, two hundred forty-two".