42270585 has 72 divisors (see below), whose sum is σ = 83995200. Its totient is φ = 18095616.

The previous prime is 42270581. The next prime is 42270587. The reversal of 42270585 is 58507224.

It is not a de Polignac number, because 42270585 - 2² = 42270581 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42270581) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 212316 + ... + 212514.

It is an arithmetic number, because the mean of its divisors is an integer number (1166600).

Almost surely, 2^42270585 is an apocalyptic number.

It is an amenable number.

42270585 is a deficient number, since it is larger than the sum of its proper divisors (41724615).

42270585 is a wasteful number, since it uses less digits than its factorization.

42270585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255 (or 231 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 33.

The square root of 42270585 is about 6501.5832687123. The cubic root of 42270585 is about 348.3475438650.

The spelling of 42270585 in words is "forty-two million, two hundred seventy thousand, five hundred eighty-five".