443438 has 4 divisors (see below), whose sum is σ = 665160. Its totient is φ = 221718.

The previous prime is 443437. The next prime is 443453. The reversal of 443438 is 834344.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a d-powerful number, because it can be written as 4² + 4⁶ + 4⁹ + 3³ + 3¹¹ + 8 .

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 443438.

It is not an unprimeable number, because it can be changed into a prime (443431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110858 + ... + 110861.

It is an arithmetic number, because the mean of its divisors is an integer number (166290).

2⁴⁴³⁴³⁸ is an apocalyptic number.

443438 is a deficient number, since it is larger than the sum of its proper divisors (221722).

443438 is a wasteful number, since it uses less digits than its factorization.

443438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221721.

The product of its digits is 4608, while the sum is 26.

The square root of 443438 is about 665.9114055188. The cubic root of 443438 is about 76.2566347358.

The spelling of 443438 in words is "four hundred forty-three thousand, four hundred thirty-eight".