40678395 has 16 divisors (see below), whose sum is σ = 65167872. Its totient is φ = 21667680.

The previous prime is 40678369. The next prime is 40678397. The reversal of 40678395 is 59387604.

It is a happy number.

It is not a de Polignac number, because 40678395 - 2⁹ = 40677883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40678397) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 17364 + ... + 19566.

It is an arithmetic number, because the mean of its divisors is an integer number (4072992).

Almost surely, 2^40678395 is an apocalyptic number.

40678395 is a deficient number, since it is larger than the sum of its proper divisors (24489477).

40678395 is a wasteful number, since it uses less digits than its factorization.

40678395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3442.

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 40678395 is about 6377.9616649836. The cubic root of 40678395 is about 343.9177596580.

The spelling of 40678395 in words is "forty million, six hundred seventy-eight thousand, three hundred ninety-five".