40218011 has 2 divisors, whose sum is σ = 40218012. Its totient is φ = 40218010.

The previous prime is 40217993. The next prime is 40218037. The reversal of 40218011 is 11081204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40218011 - 2¹⁰ = 40216987 is a prime.

It is a super-2 number, since 2×40218011² = 3234976817592242, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40218091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20109005 + 20109006.

It is an arithmetic number, because the mean of its divisors is an integer number (20109006).

Almost surely, 2^40218011 is an apocalyptic number.

40218011 is a deficient number, since it is larger than the sum of its proper divisors (1).

40218011 is an equidigital number, since it uses as much as digits as its factorization.

40218011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 17.

The square root of 40218011 is about 6341.7671827338. The cubic root of 40218011 is about 342.6153865580.

Adding to 40218011 its reverse (11081204), we get a palindrome (51299215).

The spelling of 40218011 in words is "forty million, two hundred eighteen thousand, eleven".