40678163 has 2 divisors, whose sum is σ = 40678164. Its totient is φ = 40678162.

The previous prime is 40678159. The next prime is 40678219. The reversal of 40678163 is 36187604.

40678163 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40678163 - 2² = 40678159 is a prime.

It is not a weakly prime, because it can be changed into another prime (40678153) by changing a digit.

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, 20339081 + 20339082.

It is an arithmetic number, because the mean of its divisors is an integer number (20339082).

Almost surely, 2^40678163 is an apocalyptic number.

40678163 is a deficient number, since it is larger than the sum of its proper divisors (1).

40678163 is an equidigital number, since it uses as much as digits as its factorization.

40678163 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 40678163 is about 6377.9434773287. The cubic root of 40678163 is about 343.9171058377.

The spelling of 40678163 in words is "forty million, six hundred seventy-eight thousand, one hundred sixty-three".