22422242 has 32 divisors (see below), whose sum is σ = 36763200. Its totient is φ = 10222848.

The previous prime is 22422227. The next prime is 22422247. The reversal of 22422242 is 24222422.

It is not an unprimeable number, because it can be changed into a prime (22422247) 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 in 15 ways as a sum of consecutive naturals, for example, 163598 + ... + 163734.

It is an arithmetic number, because the mean of its divisors is an integer number (1148850).

Almost surely, 2^22422242 is an apocalyptic number.

22422242 is a deficient number, since it is larger than the sum of its proper divisors (14340958).

22422242 is a wasteful number, since it uses less digits than its factorization.

22422242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290.

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

The square root of 22422242 is about 4735.2129835943. The cubic root of 22422242 is about 281.9852196200.

Adding to 22422242 its reverse (24222422), we get a palindrome (46644664).

It can be divided in two parts, 2 and 2422242, that multiplied together give a palindrome (4844484).

The spelling of 22422242 in words is "twenty-two million, four hundred twenty-two thousand, two hundred forty-two".