4002004042 has 8 divisors (see below), whose sum is σ = 6003290916. Its totient is φ = 2000907072.

The previous prime is 4002004037. The next prime is 4002004057. The reversal of 4002004042 is 2404002004.

It can be written as a sum of positive squares in 2 ways, for example, as 3537989361 + 464014681 = 59481^2 + 21541^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 31458 + ... + 94834.

Almost surely, 2^4002004042 is an apocalyptic number.

4002004042 is a deficient number, since it is larger than the sum of its proper divisors (2001286874).

4002004042 is a wasteful number, since it uses less digits than its factorization.

4002004042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94952.

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 4002004042 is about 63261.3945625608. The cubic root of 4002004042 is about 1587.6661092392. Note that the first 3 decimals are identical.

Adding to 4002004042 its reverse (2404002004), we get a palindrome (6406006046).

The spelling of 4002004042 in words is "four billion, two million, four thousand, forty-two", and thus it is an eban number.