243421435 has 8 divisors (see below), whose sum is σ = 293967216. Its totient is φ = 193496160.

The previous prime is 243421417. The next prime is 243421481. The reversal of 243421435 is 534124342.

It is a happy number.

243421435 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 243421435 - 2⁹ = 243420923 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154261 + ... + 155830.

It is an arithmetic number, because the mean of its divisors is an integer number (36745902).

Almost surely, 2^243421435 is an apocalyptic number.

243421435 is a deficient number, since it is larger than the sum of its proper divisors (50545781).

243421435 is a wasteful number, since it uses less digits than its factorization.

243421435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310253.

The product of its digits is 11520, while the sum is 28.

The square root of 243421435 is about 15601.9689462580. The cubic root of 243421435 is about 624.3856875902.

Adding to 243421435 its reverse (534124342), we get a palindrome (777545777).

The spelling of 243421435 in words is "two hundred forty-three million, four hundred twenty-one thousand, four hundred thirty-five".