42365785 has 32 divisors (see below), whose sum is σ = 67122432. Its totient is φ = 24852480.

The previous prime is 42365779. The next prime is 42365789. The reversal of 42365785 is 58756324.

42365785 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42365785 - 2¹⁵ = 42333017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42365789) 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 31 ways as a sum of consecutive naturals, for example, 3309 + ... + 9781.

It is an arithmetic number, because the mean of its divisors is an integer number (2097576).

Almost surely, 2^42365785 is an apocalyptic number.

It is an amenable number.

42365785 is a deficient number, since it is larger than the sum of its proper divisors (24756647).

42365785 is a wasteful number, since it uses less digits than its factorization.

42365785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6513.

The product of its digits is 201600, while the sum is 40.

The square root of 42365785 is about 6508.9004447756. The cubic root of 42365785 is about 348.6088589254.

The spelling of 42365785 in words is "forty-two million, three hundred sixty-five thousand, seven hundred eighty-five".