243424221452 has 6 divisors (see below), whose sum is σ = 425992387548. Its totient is φ = 121712110724.

The previous prime is 243424221449. The next prime is 243424221473. The reversal of 243424221452 is 254122424342.

243424221452 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 as a sum of consecutive naturals, namely, 30428027678 + ... + 30428027685.

It is an arithmetic number, because the mean of its divisors is an integer number (70998731258).

Almost surely, 2^243424221452 is an apocalyptic number.

It is an amenable number.

243424221452 is a deficient number, since it is larger than the sum of its proper divisors (182568166096).

243424221452 is a wasteful number, since it uses less digits than its factorization.

243424221452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60856055367 (or 60856055365 counting only the distinct ones).

The product of its digits is 122880, while the sum is 35.

Adding to 243424221452 its reverse (254122424342), we get a palindrome (497546645794).

The spelling of 243424221452 in words is "two hundred forty-three billion, four hundred twenty-four million, two hundred twenty-one thousand, four hundred fifty-two".