42808543 has 8 divisors (see below), whose sum is σ = 44786016. Its totient is φ = 40840800.

The previous prime is 42808537. The next prime is 42808559. The reversal of 42808543 is 34580824.

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

It is a cyclic number.

It is not a de Polignac number, because 42808543 - 2²⁵ = 9254111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42808499 and 42808508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42808523) 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, 7473 + ... + 11893.

It is an arithmetic number, because the mean of its divisors is an integer number (5598252).

Almost surely, 2^42808543 is an apocalyptic number.

42808543 is a deficient number, since it is larger than the sum of its proper divisors (1977473).

42808543 is a wasteful number, since it uses less digits than its factorization.

42808543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4865.

The product of its (nonzero) digits is 30720, while the sum is 34.

The square root of 42808543 is about 6542.8237787671. The cubic root of 42808543 is about 349.8190711126.

The spelling of 42808543 in words is "forty-two million, eight hundred eight thousand, five hundred forty-three".