243040411420 has 24 divisors (see below), whose sum is σ = 520014769344. Its totient is φ = 95381896896.

The previous prime is 243040411391. The next prime is 243040411423. The reversal of 243040411420 is 24114040342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243040411423) 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, 114640644 + ... + 114642763.

It is an arithmetic number, because the mean of its divisors is an integer number (21667282056).

Almost surely, 2^243040411420 is an apocalyptic number.

243040411420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243040411420 is an abundant number, since it is smaller than the sum of its proper divisors (276974357924).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

243040411420 is a wasteful number, since it uses less digits than its factorization.

243040411420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229283469 (or 229283467 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 243040411420 its reverse (24114040342), we get a palindrome (267154451762).

The spelling of 243040411420 in words is "two hundred forty-three billion, forty million, four hundred eleven thousand, four hundred twenty".