243104 has 24 divisors (see below), whose sum is σ = 489888. Its totient is φ = 118720.

The previous prime is 243101. The next prime is 243109. The reversal of 243104 is 401342.

243104 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (243101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2219 + ... + 2325.

It is an arithmetic number, because the mean of its divisors is an integer number (20412).

2²⁴³¹⁰⁴ is an apocalyptic number.

It is an amenable number.

243104 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

243104 is a wasteful number, since it uses less digits than its factorization.

243104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188 (or 180 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 243104 is about 493.0557777777. The cubic root of 243104 is about 62.4114158382.

Adding to 243104 its reverse (401342), we get a palindrome (644446).

The spelling of 243104 in words is "two hundred forty-three thousand, one hundred four", and thus it is an iban number.