442803873 has 16 divisors (see below), whose sum is σ = 634705920. Its totient is φ = 273713616.

The previous prime is 442803863. The next prime is 442803877. The reversal of 442803873 is 378308244.

It is not a de Polignac number, because 442803873 - 2⁵ = 442803841 is a prime.

It is not an unprimeable number, because it can be changed into a prime (442803877) 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 15 ways as a sum of consecutive naturals, for example, 79965 + ... + 85322.

It is an arithmetic number, because the mean of its divisors is an integer number (39669120).

Almost surely, 2^442803873 is an apocalyptic number.

It is an amenable number.

442803873 is a deficient number, since it is larger than the sum of its proper divisors (191902047).

442803873 is a wasteful number, since it uses less digits than its factorization.

442803873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165356.

The product of its (nonzero) digits is 129024, while the sum is 39.

The square root of 442803873 is about 21042.9055265664. The cubic root of 442803873 is about 762.2026778810.

The spelling of 442803873 in words is "four hundred forty-two million, eight hundred three thousand, eight hundred seventy-three".