243305452 has 12 divisors (see below), whose sum is σ = 458537296. Its totient is φ = 112294800.

The previous prime is 243305407. The next prime is 243305459. The reversal of 243305452 is 254503342.

It is a self number, because there is not a number n which added to its sum of digits gives 243305452.

It is not an unprimeable number, because it can be changed into a prime (243305459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2339424 + ... + 2339527.

Almost surely, 2^243305452 is an apocalyptic number.

It is an amenable number.

243305452 is a deficient number, since it is larger than the sum of its proper divisors (215231844).

243305452 is a wasteful number, since it uses less digits than its factorization.

243305452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4678968 (or 4678966 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 28.

The square root of 243305452 is about 15598.2515686855. The cubic root of 243305452 is about 624.2865048294.

Adding to 243305452 its reverse (254503342), we get a palindrome (497808794).

The spelling of 243305452 in words is "two hundred forty-three million, three hundred five thousand, four hundred fifty-two".