42860985 has 32 divisors (see below), whose sum is σ = 72887040. Its totient is φ = 21466368.

The previous prime is 42860977. The next prime is 42860999. The reversal of 42860985 is 58906824.

It is not a de Polignac number, because 42860985 - 2³ = 42860977 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14764 + ... + 17426.

It is an arithmetic number, because the mean of its divisors is an integer number (2277720).

Almost surely, 2^42860985 is an apocalyptic number.

It is an amenable number.

42860985 is a deficient number, since it is larger than the sum of its proper divisors (30026055).

42860985 is a wasteful number, since it uses less digits than its factorization.

42860985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2737.

The product of its (nonzero) digits is 138240, while the sum is 42.

The square root of 42860985 is about 6546.8301490110. The cubic root of 42860985 is about 349.9618597895.

The spelling of 42860985 in words is "forty-two million, eight hundred sixty thousand, nine hundred eighty-five".