22242422 has 16 divisors (see below), whose sum is σ = 33966000. Its totient is φ = 10922400.

The previous prime is 22242419. The next prime is 22242427. The reversal of 22242422 is 22424222.

It is a junction number, because it is equal to n+sod(n) for n = 22242394 and 22242403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22242427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29729 + ... + 30467.

It is an arithmetic number, because the mean of its divisors is an integer number (2122875).

Almost surely, 2^22242422 is an apocalyptic number.

22242422 is a deficient number, since it is larger than the sum of its proper divisors (11723578).

22242422 is a wasteful number, since it uses less digits than its factorization.

22242422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991.

The product of its digits is 1024, while the sum is 20.

The square root of 22242422 is about 4716.1872312282. The cubic root of 22242422 is about 281.2293817313.

Adding to 22242422 its reverse (22424222), we get a palindrome (44666644).

It can be divided in two parts, 2 and 2242422, that multiplied together give a palindrome (4484844).

The spelling of 22242422 in words is "twenty-two million, two hundred forty-two thousand, four hundred twenty-two".