22454340424 has 16 divisors (see below), whose sum is σ = 42152687100. Its totient is φ = 11213623872.

The previous prime is 22454340421. The next prime is 22454340431. The reversal of 22454340424 is 42404345422.

It can be written as a sum of positive squares in 2 ways, for example, as 19819571524 + 2634768900 = 140782^2 + 51330^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22454340424.

It is not an unprimeable number, because it can be changed into a prime (22454340421) 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, 1686247 + ... + 1699510.

Almost surely, 2^22454340424 is an apocalyptic number.

It is an amenable number.

22454340424 is a deficient number, since it is larger than the sum of its proper divisors (19698346676).

22454340424 is a wasteful number, since it uses less digits than its factorization.

22454340424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3386592 (or 3386588 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 34.

Adding to 22454340424 its reverse (42404345422), we get a palindrome (64858685846).

The spelling of 22454340424 in words is "twenty-two billion, four hundred fifty-four million, three hundred forty thousand, four hundred twenty-four".