243423433 has 8 divisors (see below), whose sum is σ = 268183296. Its totient is φ = 219102000.

The previous prime is 243423431. The next prime is 243423449. The reversal of 243423433 is 334324342.

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

It is a cyclic number.

It is not a de Polignac number, because 243423433 - 2¹ = 243423431 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243423431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108441 + ... + 110662.

It is an arithmetic number, because the mean of its divisors is an integer number (33522912).

Almost surely, 2^243423433 is an apocalyptic number.

It is an amenable number.

243423433 is a deficient number, since it is larger than the sum of its proper divisors (24759863).

243423433 is a wasteful number, since it uses less digits than its factorization.

243423433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219215.

The product of its digits is 20736, while the sum is 28.

The square root of 243423433 is about 15602.0329765066. The cubic root of 243423433 is about 624.3873959021.

Adding to 243423433 its reverse (334324342), we get a palindrome (577747775).

Subtracting 243423433 from its reverse (334324342), we obtain a palindrome (90900909).

The spelling of 243423433 in words is "two hundred forty-three million, four hundred twenty-three thousand, four hundred thirty-three".