443928 has 32 divisors (see below), whose sum is σ = 1134000. Its totient is φ = 144768.

The previous prime is 443917. The next prime is 443939. The reversal of 443928 is 829344.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (443917) and next prime (443939).

It is a junction number, because it is equal to n+sod(n) for n = 443895 and 443904.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1098 + ... + 1446.

2⁴⁴³⁹²⁸ 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 443928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (567000).

443928 is an abundant number, since it is smaller than the sum of its proper divisors (690072).

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

443928 is a wasteful number, since it uses less digits than its factorization.

443928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411 (or 407 counting only the distinct ones).

The product of its digits is 6912, while the sum is 30.

The square root of 443928 is about 666.2792207476. The cubic root of 443928 is about 76.2847123147.

The spelling of 443928 in words is "four hundred forty-three thousand, nine hundred twenty-eight".