40218359 has 2 divisors, whose sum is σ = 40218360. Its totient is φ = 40218358.

The previous prime is 40218313. The next prime is 40218391. The reversal of 40218359 is 95381204.

It is an a-pointer prime, because the next prime (40218391) can be obtained adding 40218359 to its sum of digits (32).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40218359 - 2⁸ = 40218103 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40218859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20109179 + 20109180.

It is an arithmetic number, because the mean of its divisors is an integer number (20109180).

Almost surely, 2^40218359 is an apocalyptic number.

40218359 is a deficient number, since it is larger than the sum of its proper divisors (1).

40218359 is an equidigital number, since it uses as much as digits as its factorization.

40218359 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 40218359 is about 6341.7946198217. The cubic root of 40218359 is about 342.6163747538.

The spelling of 40218359 in words is "forty million, two hundred eighteen thousand, three hundred fifty-nine".