40717081 has 4 divisors (see below), whose sum is σ = 40990500. Its totient is φ = 40443664.

The previous prime is 40717069. The next prime is 40717093. The reversal of 40717081 is 18071704.

40717081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an interprime number because it is at equal distance from previous prime (40717069) and next prime (40717093).

It can be written as a sum of positive squares in 2 ways, for example, as 12531600 + 28185481 = 3540^2 + 5309^2 .

It is a cyclic number.

It is not a de Polignac number, because 40717081 - 2⁵ = 40717049 is a prime.

It is a super-2 number, since 2×40717081² = 3315761370321122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40717051) 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 3 ways as a sum of consecutive naturals, for example, 136486 + ... + 136783.

It is an arithmetic number, because the mean of its divisors is an integer number (10247625).

Almost surely, 2^40717081 is an apocalyptic number.

It is an amenable number.

40717081 is a deficient number, since it is larger than the sum of its proper divisors (273419).

40717081 is a wasteful number, since it uses less digits than its factorization.

40717081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273418.

The product of its (nonzero) digits is 1568, while the sum is 28.

The square root of 40717081 is about 6380.9937313870. The cubic root of 40717081 is about 344.0267494297.

Adding to 40717081 its reverse (18071704), we get a palindrome (58788785).

The spelling of 40717081 in words is "forty million, seven hundred seventeen thousand, eighty-one".