442828 has 12 divisors (see below), whose sum is σ = 781200. Its totient is φ = 219632.

The previous prime is 442823. The next prime is 442829. The reversal of 442828 is 828244.

It is a junction number, because it is equal to n+sod(n) for n = 442796 and 442805.

It is not an unprimeable number, because it can be changed into a prime (442823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 225 + ... + 967.

It is an arithmetic number, because the mean of its divisors is an integer number (65100).

2⁴⁴²⁸²⁸ is an apocalyptic number.

It is an amenable number.

442828 is a deficient number, since it is larger than the sum of its proper divisors (338372).

442828 is a wasteful number, since it uses less digits than its factorization.

442828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 896 (or 894 counting only the distinct ones).

The product of its digits is 4096, while the sum is 28.

The square root of 442828 is about 665.4532290101. The cubic root of 442828 is about 76.2216520977.

The spelling of 442828 in words is "four hundred forty-two thousand, eight hundred twenty-eight".