40636805 has 8 divisors (see below), whose sum is σ = 53197344. Its totient is φ = 29554000.

The previous prime is 40636793. The next prime is 40636861. The reversal of 40636805 is 50863604.

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

It is not a de Polignac number, because 40636805 - 2⁸ = 40636549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 369371 + ... + 369480.

It is an arithmetic number, because the mean of its divisors is an integer number (6649668).

Almost surely, 2^40636805 is an apocalyptic number.

It is an amenable number.

40636805 is a deficient number, since it is larger than the sum of its proper divisors (12560539).

40636805 is a wasteful number, since it uses less digits than its factorization.

40636805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 738867.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 40636805 is about 6374.7003851162. The cubic root of 40636805 is about 343.8005113653.

The spelling of 40636805 in words is "forty million, six hundred thirty-six thousand, eight hundred five".