22434242 has 4 divisors (see below), whose sum is σ = 33651366. Its totient is φ = 11217120.

The previous prime is 22434241. The next prime is 22434253. The reversal of 22434242 is 24243422.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 20151121 + 2283121 = 4489^2 + 1511^2 .

It is a super-2 number, since 2×22434242² = 1006590428229128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22434241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5608559 + ... + 5608562.

Almost surely, 2^22434242 is an apocalyptic number.

22434242 is a deficient number, since it is larger than the sum of its proper divisors (11217124).

22434242 is a wasteful number, since it uses less digits than its factorization.

22434242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11217123.

The product of its digits is 3072, while the sum is 23.

The square root of 22434242 is about 4736.4799165625. The cubic root of 22434242 is about 282.0355152024.

Adding to 22434242 its reverse (24243422), we get a palindrome (46677664).

The spelling of 22434242 in words is "twenty-two million, four hundred thirty-four thousand, two hundred forty-two".