4005668842 has 16 divisors (see below), whose sum is σ = 6879202560. Its totient is φ = 1713629808.

The previous prime is 4005668839. The next prime is 4005668857. The reversal of 4005668842 is 2488665004.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 249042 + ... + 264637.

It is an arithmetic number, because the mean of its divisors is an integer number (429950160).

Almost surely, 2^4005668842 is an apocalyptic number.

4005668842 is a deficient number, since it is larger than the sum of its proper divisors (2873533718).

4005668842 is a wasteful number, since it uses less digits than its factorization.

4005668842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514245.

The product of its (nonzero) digits is 368640, while the sum is 43.

The square root of 4005668842 is about 63290.3534671754. The cubic root of 4005668842 is about 1588.1505918072.

The spelling of 4005668842 in words is "four billion, five million, six hundred sixty-eight thousand, eight hundred forty-two".