243530232 has 32 divisors (see below), whose sum is σ = 664174080. Its totient is φ = 73796960.

The previous prime is 243530227. The next prime is 243530249. The reversal of 243530232 is 232035342.

It is a super-3 number, since 3×243530232³ (a number of 26 digits) contains 333 as substring.

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

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, 460968 + ... + 461495.

It is an arithmetic number, because the mean of its divisors is an integer number (20755440).

Almost surely, 2^243530232 is an apocalyptic number.

243530232 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

243530232 is an abundant number, since it is smaller than the sum of its proper divisors (420643848).

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

243530232 is a wasteful number, since it uses less digits than its factorization.

243530232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 922483 (or 922479 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 24.

The square root of 243530232 is about 15605.4552000254. The cubic root of 243530232 is about 624.4786966160.

Adding to 243530232 its reverse (232035342), we get a palindrome (475565574).

The spelling of 243530232 in words is "two hundred forty-three million, five hundred thirty thousand, two hundred thirty-two".