243505434352 has 20 divisors (see below), whose sum is σ = 471804222736. Its totient is φ = 121749505920.

The previous prime is 243505434317. The next prime is 243505434353. The reversal of 243505434352 is 253434505342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243505434353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 498748 + ... + 857764.

Almost surely, 2^243505434352 is an apocalyptic number.

It is an amenable number.

243505434352 is a deficient number, since it is larger than the sum of its proper divisors (228298788384).

243505434352 is a wasteful number, since it uses less digits than its factorization.

243505434352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401416 (or 401410 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 40.

Adding to 243505434352 its reverse (253434505342), we get a palindrome (496939939694).

The spelling of 243505434352 in words is "two hundred forty-three billion, five hundred five million, four hundred thirty-four thousand, three hundred fifty-two".