243420534352 has 10 divisors (see below), whose sum is σ = 471627285338. Its totient is φ = 121710267168.

The previous prime is 243420534317. The next prime is 243420534359. The reversal of 243420534352 is 253435024342.

It can be written as a sum of positive squares in only one way, i.e., 232270019136 + 11150515216 = 481944^2 + 105596^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243420534359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7606891683 + ... + 7606891714.

Almost surely, 2^243420534352 is an apocalyptic number.

It is an amenable number.

243420534352 is a deficient number, since it is larger than the sum of its proper divisors (228206750986).

243420534352 is a wasteful number, since it uses less digits than its factorization.

243420534352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15213783405 (or 15213783399 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 37.

Adding to 243420534352 its reverse (253435024342), we get a palindrome (496855558694).

The spelling of 243420534352 in words is "two hundred forty-three billion, four hundred twenty million, five hundred thirty-four thousand, three hundred fifty-two".