442548 has 36 divisors (see below), whose sum is σ = 1179360. Its totient is φ = 139536.

The previous prime is 442537. The next prime is 442571. The reversal of 442548 is 845244.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

442548 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 361 + ... + 1007.

It is an arithmetic number, because the mean of its divisors is an integer number (32760).

2⁴⁴²⁵⁴⁸ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 442548, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (589680).

442548 is an abundant number, since it is smaller than the sum of its proper divisors (736812).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

442548 is a wasteful number, since it uses less digits than its factorization.

442548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676 (or 671 counting only the distinct ones).

The product of its digits is 5120, while the sum is 27.

The square root of 442548 is about 665.2428128135. The cubic root of 442548 is about 76.2055837353.

It can be divided in two parts, 442 and 548, that added together give a triangular number (990 = T₄₄).

The spelling of 442548 in words is "four hundred forty-two thousand, five hundred forty-eight".