40117855 has 8 divisors (see below), whose sum is σ = 48233664. Its totient is φ = 32032800.

The previous prime is 40117849. The next prime is 40117867. The reversal of 40117855 is 55871104.

40117855 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a de Polignac number, because none of the positive numbers 2^k-40117855 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4711 + ... + 10120.

It is an arithmetic number, because the mean of its divisors is an integer number (6029208).

Almost surely, 2^40117855 is an apocalyptic number.

40117855 is a deficient number, since it is larger than the sum of its proper divisors (8115809).

40117855 is a wasteful number, since it uses less digits than its factorization.

40117855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15377.

The product of its (nonzero) digits is 5600, while the sum is 31.

The square root of 40117855 is about 6333.8657232373. The cubic root of 40117855 is about 342.3307420214.

Adding to 40117855 its reverse (55871104), we get a palindrome (95988959).

The spelling of 40117855 in words is "forty million, one hundred seventeen thousand, eight hundred fifty-five".