12440126 has 4 divisors (see below), whose sum is σ = 18660192. Its totient is φ = 6220062.

The previous prime is 12440119. The next prime is 12440137. The reversal of 12440126 is 62104421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62104421 = 317 ⋅195913.

It is a junction number, because it is equal to n+sod(n) for n = 12440098 and 12440107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3110030 + ... + 3110033.

It is an arithmetic number, because the mean of its divisors is an integer number (4665048).

Almost surely, 2^12440126 is an apocalyptic number.

12440126 is a deficient number, since it is larger than the sum of its proper divisors (6220066).

12440126 is an equidigital number, since it uses as much as digits as its factorization.

12440126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6220065.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 12440126 is about 3527.0562796757. The cubic root of 12440126 is about 231.7083011508.

Adding to 12440126 its reverse (62104421), we get a palindrome (74544547).

The spelling of 12440126 in words is "twelve million, four hundred forty thousand, one hundred twenty-six".