40506717 has 8 divisors (see below), whose sum is σ = 54135424. Its totient is φ = 26941248.

The previous prime is 40506709. The next prime is 40506721. The reversal of 40506717 is 71760504.

It is a happy number.

40506717 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40506717 - 2³ = 40506709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40506797) 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 7 ways as a sum of consecutive naturals, for example, 14293 + ... + 16890.

It is an arithmetic number, because the mean of its divisors is an integer number (6766928).

Almost surely, 2^40506717 is an apocalyptic number.

It is an amenable number.

40506717 is a deficient number, since it is larger than the sum of its proper divisors (13628707).

40506717 is a wasteful number, since it uses less digits than its factorization.

40506717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31619.

The product of its (nonzero) digits is 5880, while the sum is 30.

The square root of 40506717 is about 6364.4887461602. The cubic root of 40506717 is about 343.4332570142.

The spelling of 40506717 in words is "forty million, five hundred six thousand, seven hundred seventeen".