40242259 has 2 divisors, whose sum is σ = 40242260. Its totient is φ = 40242258.

The previous prime is 40242239. The next prime is 40242263. The reversal of 40242259 is 95224204.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40242259 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40242239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20121129 + 20121130.

It is an arithmetic number, because the mean of its divisors is an integer number (20121130).

Almost surely, 2^40242259 is an apocalyptic number.

40242259 is a deficient number, since it is larger than the sum of its proper divisors (1).

40242259 is an equidigital number, since it uses as much as digits as its factorization.

40242259 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 40242259 is about 6343.6786646235. The cubic root of 40242259 is about 342.6842285903.

The spelling of 40242259 in words is "forty million, two hundred forty-two thousand, two hundred fifty-nine".