40116817 has 8 divisors (see below), whose sum is σ = 43335656. Its totient is φ = 36916992.

The previous prime is 40116781. The next prime is 40116841. The reversal of 40116817 is 71861104.

It can be written as a sum of positive squares in 4 ways, for example, as 665856 + 39450961 = 816^2 + 6281^2 .

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 40116817 - 2⁷ = 40116689 is a prime.

It is a super-2 number, since 2×40116817² = 3218718012422978, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40116877) 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, 198 + ... + 8959.

It is an arithmetic number, because the mean of its divisors is an integer number (5416957).

Almost surely, 2^40116817 is an apocalyptic number.

It is an amenable number.

40116817 is a deficient number, since it is larger than the sum of its proper divisors (3218839).

40116817 is a wasteful number, since it uses less digits than its factorization.

40116817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9507.

The product of its (nonzero) digits is 1344, while the sum is 28.

The square root of 40116817 is about 6333.7837822269. The cubic root of 40116817 is about 342.3277895341.

The spelling of 40116817 in words is "forty million, one hundred sixteen thousand, eight hundred seventeen".