40785799 has 8 divisors (see below), whose sum is σ = 43003440. Its totient is φ = 38575296.

The previous prime is 40785793. The next prime is 40785809. The reversal of 40785799 is 99758704.

It is a happy number.

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 40785799 - 2³ = 40785791 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 (40785791) 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, 13299 + ... + 16075.

It is an arithmetic number, because the mean of its divisors is an integer number (5375430).

Almost surely, 2^40785799 is an apocalyptic number.

40785799 is a deficient number, since it is larger than the sum of its proper divisors (2217641).

40785799 is a wasteful number, since it uses less digits than its factorization.

40785799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3569.

The product of its (nonzero) digits is 635040, while the sum is 49.

The square root of 40785799 is about 6386.3760459278. The cubic root of 40785799 is about 344.2201780232.

The spelling of 40785799 in words is "forty million, seven hundred eighty-five thousand, seven hundred ninety-nine".