40211317 has 4 divisors (see below), whose sum is σ = 40250700. Its totient is φ = 40171936.

The previous prime is 40211293. The next prime is 40211351. The reversal of 40211317 is 71311204.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32421636 + 7789681 = 5694^2 + 2791^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40211317 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40211294 and 40211303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40211377) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18118 + ... + 20215.

It is an arithmetic number, because the mean of its divisors is an integer number (10062675).

Almost surely, 2^40211317 is an apocalyptic number.

It is an amenable number.

40211317 is a deficient number, since it is larger than the sum of its proper divisors (39383).

40211317 is a wasteful number, since it uses less digits than its factorization.

40211317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39382.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 40211317 is about 6341.2393898985. The cubic root of 40211317 is about 342.5963768772.

The spelling of 40211317 in words is "forty million, two hundred eleven thousand, three hundred seventeen".