243522030 has 16 divisors (see below), whose sum is σ = 584452944. Its totient is φ = 64939200.

The previous prime is 243522011. The next prime is 243522043. The reversal of 243522030 is 30225342.

It is a junction number, because it is equal to n+sod(n) for n = 243521988 and 243522006.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4058671 + ... + 4058730.

It is an arithmetic number, because the mean of its divisors is an integer number (36528309).

Almost surely, 2^243522030 is an apocalyptic number.

243522030 is an abundant number, since it is smaller than the sum of its proper divisors (340930914).

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

243522030 is a wasteful number, since it uses less digits than its factorization.

243522030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8117411.

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 243522030 is about 15605.1924050939. The cubic root of 243522030 is about 624.4716858071.

Adding to 243522030 its reverse (30225342), we get a palindrome (273747372).

The spelling of 243522030 in words is "two hundred forty-three million, five hundred twenty-two thousand, thirty".