243423255 has 48 divisors (see below), whose sum is σ = 417235104. Its totient is φ = 121159680.

The previous prime is 243423251. The next prime is 243423263. The reversal of 243423255 is 552324342.

It is not a de Polignac number, because 243423255 - 2² = 243423251 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243423251) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1009935 + ... + 1010175.

It is an arithmetic number, because the mean of its divisors is an integer number (8692398).

Almost surely, 2^243423255 is an apocalyptic number.

243423255 is a deficient number, since it is larger than the sum of its proper divisors (173811849).

243423255 is a wasteful number, since it uses less digits than its factorization.

243423255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516 (or 499 counting only the distinct ones).

The product of its digits is 28800, while the sum is 30.

The square root of 243423255 is about 15602.0272721208. The cubic root of 243423255 is about 624.3872437106.

Adding to 243423255 its reverse (552324342), we get a palindrome (795747597).

The spelling of 243423255 in words is "two hundred forty-three million, four hundred twenty-three thousand, two hundred fifty-five".