40870517 has 8 divisors (see below), whose sum is σ = 42759360. Its totient is φ = 38991040.

The previous prime is 40870513. The next prime is 40870537. The reversal of 40870517 is 71507804.

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

It is a cyclic number.

It is not a de Polignac number, because 40870517 - 2² = 40870513 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 (40870513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7517 + ... + 11757.

It is an arithmetic number, because the mean of its divisors is an integer number (5344920).

Almost surely, 2^40870517 is an apocalyptic number.

It is an amenable number.

40870517 is a deficient number, since it is larger than the sum of its proper divisors (1888843).

40870517 is a wasteful number, since it uses less digits than its factorization.

40870517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4683.

The product of its (nonzero) digits is 7840, while the sum is 32.

The square root of 40870517 is about 6393.0053183147. The cubic root of 40870517 is about 344.4583448855.

The spelling of 40870517 in words is "forty million, eight hundred seventy thousand, five hundred seventeen".