42718985 has 8 divisors (see below), whose sum is σ = 51400320. Its totient is φ = 34083504.

The previous prime is 42718967. The next prime is 42718987. The reversal of 42718985 is 58981724.

42718985 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 42718985 - 2⁸ = 42718729 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42718987) 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 in 7 ways as a sum of consecutive naturals, for example, 9377 + ... + 13166.

It is an arithmetic number, because the mean of its divisors is an integer number (6425040).

Almost surely, 2^42718985 is an apocalyptic number.

It is an amenable number.

42718985 is a deficient number, since it is larger than the sum of its proper divisors (8681335).

42718985 is a wasteful number, since it uses less digits than its factorization.

42718985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22927.

The product of its digits is 161280, while the sum is 44.

The square root of 42718985 is about 6535.9762086470. The cubic root of 42718985 is about 349.5749534121.

The spelling of 42718985 in words is "forty-two million, seven hundred eighteen thousand, nine hundred eighty-five".