40255307 has 2 divisors, whose sum is σ = 40255308. Its totient is φ = 40255306.

The previous prime is 40255301. The next prime is 40255321. The reversal of 40255307 is 70355204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40255307 - 2²⁰ = 39206731 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40255301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20127653 + 20127654.

It is an arithmetic number, because the mean of its divisors is an integer number (20127654).

Almost surely, 2^40255307 is an apocalyptic number.

40255307 is a deficient number, since it is larger than the sum of its proper divisors (1).

40255307 is an equidigital number, since it uses as much as digits as its factorization.

40255307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4200, while the sum is 26.

The square root of 40255307 is about 6344.7070066316. The cubic root of 40255307 is about 342.7212614736.

The spelling of 40255307 in words is "forty million, two hundred fifty-five thousand, three hundred seven".