442528 has 12 divisors (see below), whose sum is σ = 871290. Its totient is φ = 221248.

The previous prime is 442517. The next prime is 442531. The reversal of 442528 is 825244.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 425104 + 17424 = 652^2 + 132^2 .

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6883 + ... + 6946.

2⁴⁴²⁵²⁸ is an apocalyptic number.

It is an amenable number.

442528 is a deficient number, since it is larger than the sum of its proper divisors (428762).

442528 is a wasteful number, since it uses less digits than its factorization.

442528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13839 (or 13831 counting only the distinct ones).

The product of its digits is 2560, while the sum is 25.

The square root of 442528 is about 665.2277805384. The cubic root of 442528 is about 76.2044357358.

The spelling of 442528 in words is "four hundred forty-two thousand, five hundred twenty-eight".