243412422 has 64 divisors (see below), whose sum is σ = 547430400. Its totient is φ = 71517600.

The previous prime is 243412373. The next prime is 243412423. The reversal of 243412422 is 224214342.

It is a junction number, because it is equal to n+sod(n) for n = 243412392 and 243412401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243412423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 564547 + ... + 564977.

It is an arithmetic number, because the mean of its divisors is an integer number (8553600).

Almost surely, 2^243412422 is an apocalyptic number.

243412422 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 243412422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (273715200).

243412422 is an abundant number, since it is smaller than the sum of its proper divisors (304017978).

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

243412422 is a wasteful number, since it uses less digits than its factorization.

243412422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689.

The product of its digits is 3072, while the sum is 24.

The square root of 243412422 is about 15601.6801018352. The cubic root of 243412422 is about 624.3779812603.

Adding to 243412422 its reverse (224214342), we get a palindrome (467626764).

The spelling of 243412422 in words is "two hundred forty-three million, four hundred twelve thousand, four hundred twenty-two".