40678305 has 32 divisors (see below), whose sum is σ = 66583296. Its totient is φ = 21202944.

The previous prime is 40678303. The next prime is 40678321. The reversal of 40678305 is 50387604.

40678305 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40678305 - 2¹ = 40678303 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40678303) 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 in 31 ways as a sum of consecutive naturals, for example, 174469 + ... + 174701.

It is an arithmetic number, because the mean of its divisors is an integer number (2080728).

Almost surely, 2^40678305 is an apocalyptic number.

It is an amenable number.

40678305 is a deficient number, since it is larger than the sum of its proper divisors (25904991).

40678305 is a wasteful number, since it uses less digits than its factorization.

40678305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 40678305 is about 6377.9546094340. The cubic root of 40678305 is about 343.9175060211.

The spelling of 40678305 in words is "forty million, six hundred seventy-eight thousand, three hundred five".