243652 has 6 divisors (see below), whose sum is σ = 426398. Its totient is φ = 121824.

The previous prime is 243647. The next prime is 243671. The reversal of 243652 is 256342.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 125316 + 118336 = 354^2 + 344^2 .

It is a d-powerful number, because it can be written as 2⁶ + 4³ + 6³ + 3¹¹ + 5⁴ + 2¹⁶ .

It is an unprimeable number.

243652 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30453 + ... + 30460.

2²⁴³⁶⁵² is an apocalyptic number.

It is an amenable number.

243652 is a deficient number, since it is larger than the sum of its proper divisors (182746).

243652 is a wasteful number, since it uses less digits than its factorization.

243652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60917 (or 60915 counting only the distinct ones).

The product of its digits is 1440, while the sum is 22.

The square root of 243652 is about 493.6111830176. The cubic root of 243652 is about 62.4582761521.

Adding to 243652 its reverse (256342), we get a palindrome (499994).

The spelling of 243652 in words is "two hundred forty-three thousand, six hundred fifty-two".