4000406068 has 24 divisors (see below), whose sum is σ = 7415235072. Its totient is φ = 1881853824.

The previous prime is 4000406041. The next prime is 4000406093. The reversal of 4000406068 is 8606040004.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 208621 + ... + 226987.

It is an arithmetic number, because the mean of its divisors is an integer number (308968128).

Almost surely, 2^4000406068 is an apocalyptic number.

It is an amenable number.

4000406068 is a deficient number, since it is larger than the sum of its proper divisors (3414829004).

4000406068 is a wasteful number, since it uses less digits than its factorization.

4000406068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21591 (or 21589 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 4000406068 is about 63248.7633713103. The cubic root of 4000406068 is about 1587.4547662148.

The spelling of 4000406068 in words is "four billion, four hundred six thousand, sixty-eight".