22422224 has 20 divisors (see below), whose sum is σ = 47392800. Its totient is φ = 10191840.

The previous prime is 22422199. The next prime is 22422227. The reversal of 22422224 is 42222422.

It is a super-2 number, since 2×22422224² = 1005512258212352, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 22422196 and 22422205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22422227) 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, 63524 + ... + 63875.

It is an arithmetic number, because the mean of its divisors is an integer number (2369640).

Almost surely, 2^22422224 is an apocalyptic number.

It is an amenable number.

22422224 is an abundant number, since it is smaller than the sum of its proper divisors (24970576).

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

22422224 is a wasteful number, since it uses less digits than its factorization.

22422224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127418 (or 127412 counting only the distinct ones).

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

The square root of 22422224 is about 4735.2110829402. The cubic root of 22422224 is about 281.9851441632.

Adding to 22422224 its reverse (42222422), we get a palindrome (64644646).

The spelling of 22422224 in words is "twenty-two million, four hundred twenty-two thousand, two hundred twenty-four".