22400022424 has 32 divisors (see below), whose sum is σ = 45237079440. Its totient is φ = 10337040000.

The previous prime is 22400022401. The next prime is 22400022427. The reversal of 22400022424 is 42422000422.

It is a happy number.

It is a super-2 number, since 2×22400022424² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22400022395 and 22400022404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22400022427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1265314 + ... + 1282894.

Almost surely, 2^22400022424 is an apocalyptic number.

It is an amenable number.

22400022424 is an abundant number, since it is smaller than the sum of its proper divisors (22837057016).

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

22400022424 is a wasteful number, since it uses less digits than its factorization.

22400022424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29851 (or 29847 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 22400022424 its reverse (42422000422), we get a palindrome (64822022846).

The spelling of 22400022424 in words is "twenty-two billion, four hundred million, twenty-two thousand, four hundred twenty-four".