12042442 has 8 divisors (see below), whose sum is σ = 18119232. Its totient is φ = 6002700.

The previous prime is 12042439. The next prime is 12042449. The reversal of 12042442 is 24424021.

12042442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (12042449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8434 + ... + 9757.

It is an arithmetic number, because the mean of its divisors is an integer number (2264904).

Almost surely, 2^12042442 is an apocalyptic number.

12042442 is a deficient number, since it is larger than the sum of its proper divisors (6076790).

12042442 is a wasteful number, since it uses less digits than its factorization.

12042442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18524.

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 12042442 is about 3470.2221830886. Note that the first 3 decimals coincide. The cubic root of 12042442 is about 229.2124418238.

Adding to 12042442 its reverse (24424021), we get a palindrome (36466463).

The spelling of 12042442 in words is "twelve million, forty-two thousand, four hundred forty-two".