12438282 has 16 divisors (see below), whose sum is σ = 25248672. Its totient is φ = 4084080.

The previous prime is 12438281. The next prime is 12438287. The reversal of 12438282 is 28283421.

It is a super-2 number, since 2×12438282² = 309421718223048, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12438281) 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 7 ways as a sum of consecutive naturals, for example, 15069 + ... + 15872.

It is an arithmetic number, because the mean of its divisors is an integer number (1578042).

Almost surely, 2^12438282 is an apocalyptic number.

12438282 is an abundant number, since it is smaller than the sum of its proper divisors (12810390).

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

12438282 is a wasteful number, since it uses less digits than its factorization.

12438282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31013.

The product of its digits is 6144, while the sum is 30.

The square root of 12438282 is about 3526.7948621943. The cubic root of 12438282 is about 231.6968518771.

It can be divided in two parts, 12438 and 282, that added together give a triangular number (12720 = T₁₅₉).

The spelling of 12438282 in words is "twelve million, four hundred thirty-eight thousand, two hundred eighty-two".