42445863 has 20 divisors (see below), whose sum is σ = 63684720. Its totient is φ = 28173312.

The previous prime is 42445861. The next prime is 42445891. The reversal of 42445863 is 36854424.

42445863 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 42445863 - 2¹ = 42445861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42445861) 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 19 ways as a sum of consecutive naturals, for example, 19798 + ... + 21836.

It is an arithmetic number, because the mean of its divisors is an integer number (3184236).

Almost surely, 2^42445863 is an apocalyptic number.

42445863 is a deficient number, since it is larger than the sum of its proper divisors (21238857).

42445863 is a wasteful number, since it uses less digits than its factorization.

42445863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2308 (or 2299 counting only the distinct ones).

The product of its digits is 92160, while the sum is 36.

The square root of 42445863 is about 6515.0489637454. The cubic root of 42445863 is about 348.8283625505.

The spelling of 42445863 in words is "forty-two million, four hundred forty-five thousand, eight hundred sixty-three".