443728 has 10 divisors (see below), whose sum is σ = 859754. Its totient is φ = 221856.

The previous prime is 443711. The next prime is 443731. The reversal of 443728 is 827344.

It can be written as a sum of positive squares in only one way, i.e., 322624 + 121104 = 568^2 + 348^2 .

It is a junction number, because it is equal to n+sod(n) for n = 443696 and 443705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13851 + ... + 13882.

2⁴⁴³⁷²⁸ is an apocalyptic number.

It is an amenable number.

443728 is a deficient number, since it is larger than the sum of its proper divisors (416026).

443728 is a wasteful number, since it uses less digits than its factorization.

443728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27741 (or 27735 counting only the distinct ones).

The product of its digits is 5376, while the sum is 28.

The square root of 443728 is about 666.1291166133. The cubic root of 443728 is about 76.2732545752.

It can be divided in two parts, 4437 and 28, that added together give a triangular number (4465 = T₉₄).

The spelling of 443728 in words is "four hundred forty-three thousand, seven hundred twenty-eight".