12042443 has 8 divisors (see below), whose sum is σ = 14572512. Its totient is φ = 9714816.

The previous prime is 12042439. The next prime is 12042449. The reversal of 12042443 is 34424021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12042443 - 2² = 12042439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12042449) 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, 50480 + ... + 50717.

It is an arithmetic number, because the mean of its divisors is an integer number (1821564).

Almost surely, 2^12042443 is an apocalyptic number.

12042443 is a deficient number, since it is larger than the sum of its proper divisors (2530069).

12042443 is a wasteful number, since it uses less digits than its factorization.

12042443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101221.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 12042443 is about 3470.2223271716. Note that the first 3 decimals coincide. The cubic root of 12042443 is about 229.2124481684.

Adding to 12042443 its reverse (34424021), we get a palindrome (46466464).

The spelling of 12042443 in words is "twelve million, forty-two thousand, four hundred forty-three".