443988 has 24 divisors (see below), whose sum is σ = 1151360. Its totient is φ = 147960.

The previous prime is 443987. The next prime is 443999. The reversal of 443988 is 889344.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a d-powerful number, because it can be written as 4⁶ + 4⁹ + 9² + 3¹¹ + 8 + 8³ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (443983) 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, 1948 + ... + 2163.

2⁴⁴³⁹⁸⁸ is an apocalyptic number.

It is an amenable number.

443988 is an abundant number, since it is smaller than the sum of its proper divisors (707372).

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

443988 is a wasteful number, since it uses less digits than its factorization.

443988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4124 (or 4116 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 443988 is about 666.3242453941. The cubic root of 443988 is about 76.2881489655.

It can be divided in two parts, 443 and 988, that added together give a triangular number (1431 = T₅₃).

The spelling of 443988 in words is "four hundred forty-three thousand, nine hundred eighty-eight".