442328 has 8 divisors (see below), whose sum is σ = 829380. Its totient is φ = 221160.

The previous prime is 442327. The next prime is 442333. The reversal of 442328 is 823244.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442327) 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 as a sum of consecutive naturals, namely, 27638 + ... + 27653.

2⁴⁴²³²⁸ is an apocalyptic number.

It is an amenable number.

442328 is a deficient number, since it is larger than the sum of its proper divisors (387052).

442328 is a wasteful number, since it uses less digits than its factorization.

442328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55297 (or 55293 counting only the distinct ones).

The product of its digits is 1536, while the sum is 23.

The square root of 442328 is about 665.0774391001. The cubic root of 442328 is about 76.1929538381.

The spelling of 442328 in words is "four hundred forty-two thousand, three hundred twenty-eight".