40868959 has 2 divisors, whose sum is σ = 40868960. Its totient is φ = 40868958.

The previous prime is 40868941. The next prime is 40869007. The reversal of 40868959 is 95986804.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40868959 - 2¹¹ = 40866911 is a prime.

It is a super-3 number, since 3×40868959³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40868929) 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, 20434479 + 20434480.

It is an arithmetic number, because the mean of its divisors is an integer number (20434480).

Almost surely, 2^40868959 is an apocalyptic number.

40868959 is a deficient number, since it is larger than the sum of its proper divisors (1).

40868959 is an equidigital number, since it uses as much as digits as its factorization.

40868959 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 622080, while the sum is 49.

The square root of 40868959 is about 6392.8834652291. The cubic root of 40868959 is about 344.4539678679.

The spelling of 40868959 in words is "forty million, eight hundred sixty-eight thousand, nine hundred fifty-nine".