42445585 has 16 divisors (see below), whose sum is σ = 62689536. Its totient is φ = 26866368.

The previous prime is 42445577. The next prime is 42445607. The reversal of 42445585 is 58554424.

It is a cyclic number.

It is not a de Polignac number, because 42445585 - 2³ = 42445577 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46189 + ... + 47098.

It is an arithmetic number, because the mean of its divisors is an integer number (3918096).

Almost surely, 2^42445585 is an apocalyptic number.

It is an amenable number.

42445585 is a deficient number, since it is larger than the sum of its proper divisors (20243951).

42445585 is a wasteful number, since it uses less digits than its factorization.

42445585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93312.

The product of its digits is 128000, while the sum is 37.

The square root of 42445585 is about 6515.0276284909. The cubic root of 42445585 is about 348.8276009962.

The spelling of 42445585 in words is "forty-two million, four hundred forty-five thousand, five hundred eighty-five".