42740911 has 2 divisors, whose sum is σ = 42740912. Its totient is φ = 42740910.

The previous prime is 42740903. The next prime is 42740917. The reversal of 42740911 is 11904724.

42740911 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42740911 - 2³ = 42740903 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42740911.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42740917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21370455 + 21370456.

It is an arithmetic number, because the mean of its divisors is an integer number (21370456).

Almost surely, 2^42740911 is an apocalyptic number.

42740911 is a deficient number, since it is larger than the sum of its proper divisors (1).

42740911 is an equidigital number, since it uses as much as digits as its factorization.

42740911 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 42740911 is about 6537.6533251619. The cubic root of 42740911 is about 349.6347509429.

The spelling of 42740911 in words is "forty-two million, seven hundred forty thousand, nine hundred eleven".