12422442 has 32 divisors (see below), whose sum is σ = 25755840. Its totient is φ = 3991680.

The previous prime is 12422441. The next prime is 12422453. The reversal of 12422442 is 24422421.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (12422441) 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 15 ways as a sum of consecutive naturals, for example, 22692 + ... + 23232.

It is an arithmetic number, because the mean of its divisors is an integer number (804870).

Almost surely, 2^12422442 is an apocalyptic number.

12422442 is an abundant number, since it is smaller than the sum of its proper divisors (13333398).

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

12422442 is a wasteful number, since it uses less digits than its factorization.

12422442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678.

The product of its digits is 1024, while the sum is 21.

The square root of 12422442 is about 3524.5484817207. The cubic root of 12422442 is about 231.5984557275.

Subtracting from 12422442 its sum of digits (21), we obtain a palindrome (12422421).

Adding to 12422442 its reverse (24422421), we get a palindrome (36844863).

The spelling of 12422442 in words is "twelve million, four hundred twenty-two thousand, four hundred forty-two".