40255343 has 2 divisors, whose sum is σ = 40255344. Its totient is φ = 40255342.

The previous prime is 40255321. The next prime is 40255349. The reversal of 40255343 is 34355204.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40255343 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40255349) 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, 20127671 + 20127672.

It is an arithmetic number, because the mean of its divisors is an integer number (20127672).

Almost surely, 2^40255343 is an apocalyptic number.

40255343 is a deficient number, since it is larger than the sum of its proper divisors (1).

40255343 is an equidigital number, since it uses as much as digits as its factorization.

40255343 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7200, while the sum is 26.

The square root of 40255343 is about 6344.7098436414. The cubic root of 40255343 is about 342.7213636379.

The spelling of 40255343 in words is "forty million, two hundred fifty-five thousand, three hundred forty-three".