439443 has 12 divisors (see below), whose sum is σ = 640848. Its totient is φ = 290160.

The previous prime is 439441. The next prime is 439459. The reversal of 439443 is 344934.

It is not a de Polignac number, because 439443 - 2¹ = 439441 is a prime.

It is a super-2 number, since 2×439443² = 386220300498, which contains 22 as substring.

It is a d-powerful number, because it can be written as 4 + 3 + 4³ + 9² + 4⁹ + 3¹¹ .

It is not an unprimeable number, because it can be changed into a prime (439441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1258 + ... + 1568.

It is an arithmetic number, because the mean of its divisors is an integer number (53404).

2⁴³⁹⁴⁴³ is an apocalyptic number.

439443 is a deficient number, since it is larger than the sum of its proper divisors (201405).

439443 is a wasteful number, since it uses less digits than its factorization.

439443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474 (or 471 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

The square root of 439443 is about 662.9049705652. The cubic root of 439443 is about 76.0269410488.

The spelling of 439443 in words is "four hundred thirty-nine thousand, four hundred forty-three".