12442005 has 40 divisors (see below), whose sum is σ = 23046144. Its totient is φ = 6415200.

The previous prime is 12441997. The next prime is 12442019. The reversal of 12442005 is 50024421.

It is not a de Polignac number, because 12442005 - 2³ = 12441997 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 12060 + ... + 13050.

Almost surely, 2^12442005 is an apocalyptic number.

12442005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12442005 is a deficient number, since it is larger than the sum of its proper divisors (10604139).

12442005 is an equidigital number, since it uses as much as digits as its factorization.

12442005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1039 (or 1030 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 12442005 is about 3527.3226390564. The cubic root of 12442005 is about 231.7199665733.

Adding to 12442005 its reverse (50024421), we get a palindrome (62466426).

It can be divided in two parts, 1244 and 2005, that added together give a square (3249 = 57²).

The spelling of 12442005 in words is "twelve million, four hundred forty-two thousand, five".