40678171 has 4 divisors (see below), whose sum is σ = 41543712. Its totient is φ = 39812632.

The previous prime is 40678163. The next prime is 40678219. The reversal of 40678171 is 17187604.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40678171 - 2³ = 40678163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40678111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 432700 + ... + 432793.

It is an arithmetic number, because the mean of its divisors is an integer number (10385928).

Almost surely, 2^40678171 is an apocalyptic number.

40678171 is a deficient number, since it is larger than the sum of its proper divisors (865541).

40678171 is an equidigital number, since it uses as much as digits as its factorization.

40678171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865540.

The product of its (nonzero) digits is 9408, while the sum is 34.

The square root of 40678171 is about 6377.9441044901. The cubic root of 40678171 is about 343.9171283833.

The spelling of 40678171 in words is "forty million, six hundred seventy-eight thousand, one hundred seventy-one".