243421041 has 32 divisors (see below), whose sum is σ = 344217600. Its totient is φ = 152792640.

The previous prime is 243421007. The next prime is 243421043. The reversal of 243421041 is 140124342.

243421041 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 243421041 - 2¹¹ = 243418993 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 243420999 and 243421017.

It is not an unprimeable number, because it can be changed into a prime (243421043) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 735246 + ... + 735576.

It is an arithmetic number, because the mean of its divisors is an integer number (10756800).

Almost surely, 2^243421041 is an apocalyptic number.

It is an amenable number.

243421041 is a deficient number, since it is larger than the sum of its proper divisors (100796559).

243421041 is a wasteful number, since it uses less digits than its factorization.

243421041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 243421041 is about 15601.9563196415. The cubic root of 243421041 is about 624.3853507148.

Adding to 243421041 its reverse (140124342), we get a palindrome (383545383).

The spelling of 243421041 in words is "two hundred forty-three million, four hundred twenty-one thousand, forty-one".