12442338 has 12 divisors (see below), whose sum is σ = 26958438. Its totient is φ = 4147440.

The previous prime is 12442337. The next prime is 12442343. The reversal of 12442338 is 83324421.

It can be written as a sum of positive squares in only one way, i.e., 11269449 + 1172889 = 3357^2 + 1083^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12442337) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 345603 + ... + 345638.

Almost surely, 2^12442338 is an apocalyptic number.

12442338 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12442338 is an abundant number, since it is smaller than the sum of its proper divisors (14516100).

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

12442338 is a wasteful number, since it uses less digits than its factorization.

12442338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691249 (or 691246 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

The square root of 12442338 is about 3527.3698416809. The cubic root of 12442338 is about 231.7220338195.

Adding to 12442338 its reverse (83324421), we get a palindrome (95766759).

The spelling of 12442338 in words is "twelve million, four hundred forty-two thousand, three hundred thirty-eight".