40636259 has 2 divisors, whose sum is σ = 40636260. Its totient is φ = 40636258.

The previous prime is 40636229. The next prime is 40636261. The reversal of 40636259 is 95263604.

40636259 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 a de Polignac number, because none of the positive numbers 2^k-40636259 is a prime.

Together with 40636261, 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 (40636229) 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, 20318129 + 20318130.

It is an arithmetic number, because the mean of its divisors is an integer number (20318130).

Almost surely, 2^40636259 is an apocalyptic number.

40636259 is a deficient number, since it is larger than the sum of its proper divisors (1).

40636259 is an equidigital number, since it uses as much as digits as its factorization.

40636259 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 35.

The square root of 40636259 is about 6374.6575594302. The cubic root of 40636259 is about 343.7989715795.

The spelling of 40636259 in words is "forty million, six hundred thirty-six thousand, two hundred fifty-nine".