12006442 has 16 divisors (see below), whose sum is σ = 21666240. Its totient is φ = 4874688.

The previous prime is 12006433. The next prime is 12006443. The reversal of 12006442 is 24460021.

12006442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×12006442³ (a number of 22 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (12006443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22303 + ... + 22834.

It is an arithmetic number, because the mean of its divisors is an integer number (1354140).

Almost surely, 2^12006442 is an apocalyptic number.

12006442 is a deficient number, since it is larger than the sum of its proper divisors (9659798).

12006442 is a wasteful number, since it uses less digits than its factorization.

12006442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45165.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 12006442 is about 3465.0313129898. The cubic root of 12006442 is about 228.9838092327.

Adding to 12006442 its reverse (24460021), we get a palindrome (36466463).

The spelling of 12006442 in words is "twelve million, six thousand, four hundred forty-two".