243434322 has 80 divisors (see below), whose sum is σ = 593417880. Its totient is φ = 74276352.

The previous prime is 243434297. The next prime is 243434329. The reversal of 243434322 is 223434342.

It can be written as a sum of positive squares in 4 ways, for example, as 237129201 + 6305121 = 15399^2 + 2511^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (243434329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 100704 + ... + 103092.

Almost surely, 2^243434322 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243434322, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (296708940).

243434322 is an abundant number, since it is smaller than the sum of its proper divisors (349983558).

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

243434322 is a wasteful number, since it uses less digits than its factorization.

243434322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2457 (or 2448 counting only the distinct ones).

The product of its digits is 13824, while the sum is 27.

The square root of 243434322 is about 15602.3819335382. The cubic root of 243434322 is about 624.3967059521.

Adding to 243434322 its reverse (223434342), we get a palindrome (466868664).

The spelling of 243434322 in words is "two hundred forty-three million, four hundred thirty-four thousand, three hundred twenty-two".