538443 has 12 divisors (see below), whose sum is σ = 804960. Its totient is φ = 346416.

The previous prime is 538423. The next prime is 538457. The reversal of 538443 is 344835.

It is a happy number.

538443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 538443 - 2⁵ = 538411 is a prime.

It is an Ulam number.

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 538443.

It is not an unprimeable number, because it can be changed into a prime (538423) 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, 771 + ... + 1292.

It is an arithmetic number, because the mean of its divisors is an integer number (67080).

2⁵³⁸⁴⁴³ is an apocalyptic number.

538443 is a deficient number, since it is larger than the sum of its proper divisors (266517).

538443 is a wasteful number, since it uses less digits than its factorization.

538443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2098 (or 2095 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 538443 is about 733.7867537643. The cubic root of 538443 is about 81.3541874471.

The spelling of 538443 in words is "five hundred thirty-eight thousand, four hundred forty-three".