22252422 has 48 divisors (see below), whose sum is σ = 48584592. Its totient is φ = 6789120.

The previous prime is 22252411. The next prime is 22252423. The reversal of 22252422 is 22425222.

It is a super-4 number, since 4×22252422⁴ (a number of 30 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22252423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 70938 + ... + 71250.

It is an arithmetic number, because the mean of its divisors is an integer number (1012179).

Almost surely, 2^22252422 is an apocalyptic number.

22252422 is an abundant number, since it is smaller than the sum of its proper divisors (26332170).

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

22252422 is a wasteful number, since it uses less digits than its factorization.

22252422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393 (or 376 counting only the distinct ones).

The product of its digits is 1280, while the sum is 21.

The square root of 22252422 is about 4717.2472905287. The cubic root of 22252422 is about 281.2715215136.

Adding to 22252422 its reverse (22425222), we get a palindrome (44677644).

The spelling of 22252422 in words is "twenty-two million, two hundred fifty-two thousand, four hundred twenty-two".