12000442 has 4 divisors (see below), whose sum is σ = 18000666. Its totient is φ = 6000220.

The previous prime is 12000433. The next prime is 12000467. The reversal of 12000442 is 24400021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 8462281 + 3538161 = 2909^2 + 1881^2 .

It is a Smith number, since the sum of its digits (13) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3000109 + ... + 3000112.

Almost surely, 2^12000442 is an apocalyptic number.

12000442 is a deficient number, since it is larger than the sum of its proper divisors (6000224).

12000442 is an equidigital number, since it uses as much as digits as its factorization.

12000442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6000223.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 12000442 is about 3464.1654117550. The cubic root of 12000442 is about 228.9456593856.

Adding to 12000442 its reverse (24400021), we get a palindrome (36400463).

The spelling of 12000442 in words is "twelve million, four hundred forty-two", and thus it is an aban number.