243441 has 12 divisors (see below), whose sum is σ = 383760. Its totient is φ = 147480.

The previous prime is 243437. The next prime is 243461. The reversal of 243441 is 144342.

It is not a de Polignac number, because 243441 - 2² = 243437 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 243441.

It is not an unprimeable number, because it can be changed into a prime (243401) 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, 1131 + ... + 1328.

It is an arithmetic number, because the mean of its divisors is an integer number (31980).

2²⁴³⁴⁴¹ is an apocalyptic number.

It is an amenable number.

243441 is a deficient number, since it is larger than the sum of its proper divisors (140319).

243441 is a wasteful number, since it uses less digits than its factorization.

243441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2476 (or 2473 counting only the distinct ones).

The product of its digits is 384, while the sum is 18.

The square root of 243441 is about 493.3974057492. The cubic root of 243441 is about 62.4402415477.

Adding to 243441 its reverse (144342), we get a palindrome (387783).

Subtracting from 243441 its reverse (144342), we obtain a palindrome (99099).

The spelling of 243441 in words is "two hundred forty-three thousand, four hundred forty-one", and thus it is an iban number.