40666017 has 16 divisors (see below), whose sum is σ = 63967232. Its totient is φ = 22487760.

The previous prime is 40666007. The next prime is 40666051. The reversal of 40666017 is 71066604.

It is not a de Polignac number, because 40666017 - 2⁸ = 40665761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40666007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30583 + ... + 31884.

It is an arithmetic number, because the mean of its divisors is an integer number (3997952).

Almost surely, 2^40666017 is an apocalyptic number.

It is an amenable number.

40666017 is a deficient number, since it is larger than the sum of its proper divisors (23301215).

40666017 is a wasteful number, since it uses less digits than its factorization.

40666017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62508.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 40666017 is about 6376.9912184352. The cubic root of 40666017 is about 343.8828726220.

The spelling of 40666017 in words is "forty million, six hundred sixty-six thousand, seventeen".