40242264449 has 2 divisors, whose sum is σ = 40242264450. Its totient is φ = 40242264448.

The previous prime is 40242264443. The next prime is 40242264463. The reversal of 40242264449 is 94446224204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31446638224 + 8795626225 = 177332^2 + 93785^2 .

It is a cyclic number.

It is not a de Polignac number, because 40242264449 - 2⁸ = 40242264193 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (40242264443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20121132224 + 20121132225.

It is an arithmetic number, because the mean of its divisors is an integer number (20121132225).

Almost surely, 2^40242264449 is an apocalyptic number.

It is an amenable number.

40242264449 is a deficient number, since it is larger than the sum of its proper divisors (1).

40242264449 is an equidigital number, since it uses as much as digits as its factorization.

40242264449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 442368, while the sum is 41.

The spelling of 40242264449 in words is "forty billion, two hundred forty-two million, two hundred sixty-four thousand, four hundred forty-nine".