243422357 has 4 divisors (see below), whose sum is σ = 256234080. Its totient is φ = 230610636.

The previous prime is 243422351. The next prime is 243422359. The reversal of 243422357 is 753224342.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 243422357 - 2¹⁰ = 243421333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243422351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6405833 + ... + 6405870.

It is an arithmetic number, because the mean of its divisors is an integer number (64058520).

Almost surely, 2^243422357 is an apocalyptic number.

It is an amenable number.

243422357 is a deficient number, since it is larger than the sum of its proper divisors (12811723).

243422357 is a wasteful number, since it uses less digits than its factorization.

243422357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12811722.

The product of its digits is 40320, while the sum is 32.

The square root of 243422357 is about 15601.9984937828. The cubic root of 243422357 is about 624.3864759115.

Adding to 243422357 its reverse (753224342), we get a palindrome (996646699).

The spelling of 243422357 in words is "two hundred forty-three million, four hundred twenty-two thousand, three hundred fifty-seven".