4005668078 has 16 divisors (see below), whose sum is σ = 6363164304. Its totient is φ = 1884658560.

The previous prime is 4005668077. The next prime is 4005668083. The reversal of 4005668078 is 8708665004.

It is a super-2 number, since 2×4005668078² = 32090753502216428168, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4005668077) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 269768 + ... + 284228.

It is an arithmetic number, because the mean of its divisors is an integer number (397697769).

Almost surely, 2^4005668078 is an apocalyptic number.

4005668078 is a deficient number, since it is larger than the sum of its proper divisors (2357496226).

4005668078 is a wasteful number, since it uses less digits than its factorization.

4005668078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22627.

The product of its (nonzero) digits is 322560, while the sum is 44.

The square root of 4005668078 is about 63290.3474315002. The cubic root of 4005668078 is about 1588.1504908381.

The spelling of 4005668078 in words is "four billion, five million, six hundred sixty-eight thousand, seventy-eight".