4005111442 has 4 divisors (see below), whose sum is σ = 6007667166. Its totient is φ = 2002555720.

The previous prime is 4005111437. The next prime is 4005111449. The reversal of 4005111442 is 2441115004.

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., 2365752321 + 1639359121 = 48639^2 + 40489^2 .

It is not an unprimeable number, because it can be changed into a prime (4005111449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001277859 + ... + 1001277862.

Almost surely, 2^4005111442 is an apocalyptic number.

4005111442 is a deficient number, since it is larger than the sum of its proper divisors (2002555724).

4005111442 is a wasteful number, since it uses less digits than its factorization.

4005111442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2002555723.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 4005111442 is about 63285.9497993038. The cubic root of 4005111442 is about 1588.0769231942.

Adding to 4005111442 its reverse (2441115004), we get a palindrome (6446226446).

The spelling of 4005111442 in words is "four billion, five million, one hundred eleven thousand, four hundred forty-two".