40068068 has 6 divisors (see below), whose sum is σ = 70119126. Its totient is φ = 20034032.

The previous prime is 40067999. The next prime is 40068079. The reversal of 40068068 is 86086004.

40068068 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 31899904 + 8168164 = 5648^2 + 2858^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 5008505 + ... + 5008512.

It is an arithmetic number, because the mean of its divisors is an integer number (11686521).

Almost surely, 2^40068068 is an apocalyptic number.

It is an amenable number.

40068068 is a deficient number, since it is larger than the sum of its proper divisors (30051058).

40068068 is a wasteful number, since it uses less digits than its factorization.

40068068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10017021 (or 10017019 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 40068068 is about 6329.9342808595. The cubic root of 40068068 is about 342.1890704723.

The spelling of 40068068 in words is "forty million, sixty-eight thousand, sixty-eight".