40855223 has 2 divisors, whose sum is σ = 40855224. Its totient is φ = 40855222.

The previous prime is 40855211. The next prime is 40855231. The reversal of 40855223 is 32255804.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40855223 - 2⁶ = 40855159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40855273) 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, 20427611 + 20427612.

It is an arithmetic number, because the mean of its divisors is an integer number (20427612).

Almost surely, 2^40855223 is an apocalyptic number.

40855223 is a deficient number, since it is larger than the sum of its proper divisors (1).

40855223 is an equidigital number, since it uses as much as digits as its factorization.

40855223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 40855223 is about 6391.8090553458. The cubic root of 40855223 is about 344.4153733780.

The spelling of 40855223 in words is "forty million, eight hundred fifty-five thousand, two hundred twenty-three".