40785613 has 8 divisors (see below), whose sum is σ = 45440640. Its totient is φ = 36288480.

The previous prime is 40785607. The next prime is 40785623. The reversal of 40785613 is 31658704.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40785613 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 (40785623) 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, 38928 + ... + 39961.

It is an arithmetic number, because the mean of its divisors is an integer number (5680080).

Almost surely, 2^40785613 is an apocalyptic number.

It is an amenable number.

40785613 is a deficient number, since it is larger than the sum of its proper divisors (4655027).

40785613 is a wasteful number, since it uses less digits than its factorization.

40785613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78947.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 40785613 is about 6386.3614836619. The cubic root of 40785613 is about 344.2196547606.

The spelling of 40785613 in words is "forty million, seven hundred eighty-five thousand, six hundred thirteen".