42842585 has 8 divisors (see below), whose sum is σ = 51709320. Its totient is φ = 34075264.

The previous prime is 42842573. The next prime is 42842593. The reversal of 42842585 is 58524824.

It can be written as a sum of positive squares in 4 ways, for example, as 3139984 + 39702601 = 1772^2 + 6301^2 .

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-42842585 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23900 + ... + 25629.

It is an arithmetic number, because the mean of its divisors is an integer number (6463665).

Almost surely, 2^42842585 is an apocalyptic number.

It is an amenable number.

42842585 is a deficient number, since it is larger than the sum of its proper divisors (8866735).

42842585 is a wasteful number, since it uses less digits than its factorization.

42842585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49707.

The product of its digits is 102400, while the sum is 38.

The square root of 42842585 is about 6545.4247379372. The cubic root of 42842585 is about 349.9117736806.

The spelling of 42842585 in words is "forty-two million, eight hundred forty-two thousand, five hundred eighty-five".