40240859 has 2 divisors, whose sum is σ = 40240860. Its totient is φ = 40240858.

The previous prime is 40240843. The next prime is 40240861. The reversal of 40240859 is 95804204.

40240859 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40240859 - 2⁴ = 40240843 is a prime.

Together with 40240861, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40240259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20120429 + 20120430.

It is an arithmetic number, because the mean of its divisors is an integer number (20120430).

Almost surely, 2^40240859 is an apocalyptic number.

40240859 is a deficient number, since it is larger than the sum of its proper divisors (1).

40240859 is an equidigital number, since it uses as much as digits as its factorization.

40240859 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 40240859 is about 6343.5683175954. The cubic root of 40240859 is about 342.6802546295.

The spelling of 40240859 in words is "forty million, two hundred forty thousand, eight hundred fifty-nine".