243243452 has 24 divisors (see below), whose sum is σ = 431827200. Its totient is φ = 119871536.

The previous prime is 243243443. The next prime is 243243479. The reversal of 243243452 is 254342342.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 238199 + ... + 239217.

It is an arithmetic number, because the mean of its divisors is an integer number (17992800).

Almost surely, 2^243243452 is an apocalyptic number.

It is an amenable number.

243243452 is a deficient number, since it is larger than the sum of its proper divisors (188583748).

243243452 is a wasteful number, since it uses less digits than its factorization.

243243452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1825 (or 1823 counting only the distinct ones).

The product of its digits is 23040, while the sum is 29.

The square root of 243243452 is about 15596.2640398270. The cubic root of 243243452 is about 624.2334726550.

Adding to 243243452 its reverse (254342342), we get a palindrome (497585794).

The spelling of 243243452 in words is "two hundred forty-three million, two hundred forty-three thousand, four hundred fifty-two".