40212017 has 2 divisors, whose sum is σ = 40212018. Its totient is φ = 40212016.

The previous prime is 40211959. The next prime is 40212031. The reversal of 40212017 is 71021204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37994896 + 2217121 = 6164^2 + 1489^2 .

It is a cyclic number.

It is not a de Polignac number, because 40212017 - 2⁸ = 40211761 is a prime.

It is a super-2 number, since 2×40212017² = 3234012622416578, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 40211986 and 40212004.

It is not a weakly prime, because it can be changed into another prime (40212047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20106008 + 20106009.

It is an arithmetic number, because the mean of its divisors is an integer number (20106009).

Almost surely, 2^40212017 is an apocalyptic number.

It is an amenable number.

40212017 is a deficient number, since it is larger than the sum of its proper divisors (1).

40212017 is an equidigital number, since it uses as much as digits as its factorization.

40212017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 40212017 is about 6341.2945839158. The cubic root of 40212017 is about 342.5983648422.

The spelling of 40212017 in words is "forty million, two hundred twelve thousand, seventeen".