442736 has 40 divisors (see below), whose sum is σ = 1011840. Its totient is φ = 183744.

The previous prime is 442733. The next prime is 442747. The reversal of 442736 is 637244.

It is a happy number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 442736.

It is not an unprimeable number, because it can be changed into a prime (442733) 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, 6575 + ... + 6641.

It is an arithmetic number, because the mean of its divisors is an integer number (25296).

2⁴⁴²⁷³⁶ 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 442736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (505920).

442736 is an abundant number, since it is smaller than the sum of its proper divisors (569104).

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

442736 is a wasteful number, since it uses less digits than its factorization.

442736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141 (or 135 counting only the distinct ones).

The product of its digits is 4032, while the sum is 26.

The square root of 442736 is about 665.3840995996. The cubic root of 442736 is about 76.2163732403.

The spelling of 442736 in words is "four hundred forty-two thousand, seven hundred thirty-six".