243230424 has 128 divisors (see below), whose sum is σ = 678974400. Its totient is φ = 72253440.

The previous prime is 243230423. The next prime is 243230443. The reversal of 243230424 is 424032342.

243230424 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×243230424² = 118322078318439552, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 243230394 and 243230403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243230423) 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, 721584 + ... + 721920.

Almost surely, 2^243230424 is an apocalyptic number.

243230424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243230424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (339487200).

243230424 is an abundant number, since it is smaller than the sum of its proper divisors (435743976).

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

243230424 is a wasteful number, since it uses less digits than its factorization.

243230424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453 (or 449 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 24.

The square root of 243230424 is about 15595.8463701077. The cubic root of 243230424 is about 624.2223279098. Note that the first 3 decimals are identical.

Adding to 243230424 its reverse (424032342), we get a palindrome (667262766).

The spelling of 243230424 in words is "two hundred forty-three million, two hundred thirty thousand, four hundred twenty-four".