2012043442 has 4 divisors (see below), whose sum is σ = 3018065166. Its totient is φ = 1006021720.

The previous prime is 2012043373. The next prime is 2012043443. The reversal of 2012043442 is 2443402102.

It is a happy number.

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., 1774852641 + 237190801 = 42129^2 + 15401^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (2012043443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 503010859 + ... + 503010862.

Almost surely, 2^2012043442 is an apocalyptic number.

2012043442 is a deficient number, since it is larger than the sum of its proper divisors (1006021724).

2012043442 is a wasteful number, since it uses less digits than its factorization.

2012043442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1006021723.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 2012043442 is about 44855.8072271584. The cubic root of 2012043442 is about 1262.4449549180. Note that the first 3 decimals are identical.

Adding to 2012043442 its reverse (2443402102), we get a palindrome (4455445544).

The spelling of 2012043442 in words is "two billion, twelve million, forty-three thousand, four hundred forty-two".