12442130 has 16 divisors (see below), whose sum is σ = 23713560. Its totient is φ = 4684032.

The previous prime is 12442117. The next prime is 12442139. The reversal of 12442130 is 3124421.

It can be written as a sum of positive squares in 4 ways, for example, as 12439729 + 2401 = 3527^2 + 49^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a junction number, because it is equal to n+sod(n) for n = 12442099 and 12442108.

It is not an unprimeable number, because it can be changed into a prime (12442139) 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, 36425 + ... + 36764.

Almost surely, 2^12442130 is an apocalyptic number.

12442130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12442130 is a deficient number, since it is larger than the sum of its proper divisors (11271430).

12442130 is a wasteful number, since it uses less digits than its factorization.

12442130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73213.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 12442130 is about 3527.3403578334. The cubic root of 12442130 is about 231.7207425710.

Adding to 12442130 its reverse (3124421), we get a palindrome (15566551).

The spelling of 12442130 in words is "twelve million, four hundred forty-two thousand, one hundred thirty".