442803 has 8 divisors (see below), whose sum is σ = 599488. Its totient is φ = 290664.

The previous prime is 442789. The next prime is 442807. The reversal of 442803 is 308244.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 442803 - 2⁹ = 442291 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 442803.

It is not an unprimeable number, because it can be changed into a prime (442807) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 901 + ... + 1302.

It is an arithmetic number, because the mean of its divisors is an integer number (74936).

2⁴⁴²⁸⁰³ is an apocalyptic number.

442803 is a deficient number, since it is larger than the sum of its proper divisors (156685).

442803 is a wasteful number, since it uses less digits than its factorization.

442803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2273.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 442803 is about 665.4344445548. The cubic root of 442803 is about 76.2202176980.

The spelling of 442803 in words is "four hundred forty-two thousand, eight hundred three".