42540911 has 8 divisors (see below), whose sum is σ = 48721920. Its totient is φ = 36385848.

The previous prime is 42540899. The next prime is 42540917. The reversal of 42540911 is 11904524.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42540911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42540917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2831 + ... + 9648.

It is an arithmetic number, because the mean of its divisors is an integer number (6090240).

Almost surely, 2^42540911 is an apocalyptic number.

42540911 is a deficient number, since it is larger than the sum of its proper divisors (6181009).

42540911 is a wasteful number, since it uses less digits than its factorization.

42540911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12973.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 42540911 is about 6522.3393809277. The cubic root of 42540911 is about 349.0885427624.

The spelling of 42540911 in words is "forty-two million, five hundred forty thousand, nine hundred eleven".