4040444042 has 8 divisors (see below), whose sum is σ = 6061291236. Its totient is φ = 2020013632.

The previous prime is 4040444039. The next prime is 4040444047. The reversal of 4040444042 is 2404440404.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3597720361 + 442723681 = 59981^2 + 21041^2 .

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 (4040444047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78713 + ... + 119484.

Almost surely, 2^4040444042 is an apocalyptic number.

4040444042 is a deficient number, since it is larger than the sum of its proper divisors (2020847194).

4040444042 is a wasteful number, since it uses less digits than its factorization.

4040444042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208392.

The product of its (nonzero) digits is 8192, while the sum is 26.

The square root of 4040444042 is about 63564.4872708024. The cubic root of 4040444042 is about 1592.7331972536.

Adding to 4040444042 its reverse (2404440404), we get a palindrome (6444884446).

The spelling of 4040444042 in words is "four billion, forty million, four hundred forty-four thousand, forty-two".