243224 has 8 divisors (see below), whose sum is σ = 456060. Its totient is φ = 121608.

The previous prime is 243209. The next prime is 243227. The reversal of 243224 is 422342.

243224 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243227) by changing a digit.

243224 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15194 + ... + 15209.

2²⁴³²²⁴ is an apocalyptic number.

It is an amenable number.

243224 is a deficient number, since it is larger than the sum of its proper divisors (212836).

243224 is a wasteful number, since it uses less digits than its factorization.

243224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30409 (or 30405 counting only the distinct ones).

The product of its digits is 384, while the sum is 17.

The square root of 243224 is about 493.1774528504. The cubic root of 243224 is about 62.4216832381.

Adding to 243224 its reverse (422342), we get a palindrome (665566).

The spelling of 243224 in words is "two hundred forty-three thousand, two hundred twenty-four", and thus it is an iban number.