243230232 has 32 divisors (see below), whose sum is σ = 694944000. Its totient is φ = 69494304.

The previous prime is 243230219. The next prime is 243230261. The reversal of 243230232 is 232032342.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 243230199 and 243230208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 723732 + ... + 724067.

It is an arithmetic number, because the mean of its divisors is an integer number (21717000).

Almost surely, 2^243230232 is an apocalyptic number.

It is an amenable number.

243230232 is an abundant number, since it is smaller than the sum of its proper divisors (451713768).

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

243230232 is a wasteful number, since it uses less digits than its factorization.

243230232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1447815 (or 1447811 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 21.

The square root of 243230232 is about 15595.8402146213. The cubic root of 243230232 is about 624.2221636613. Note that the first 3 decimals are identical.

Adding to 243230232 its reverse (232032342), we get a palindrome (475262574).

The spelling of 243230232 in words is "two hundred forty-three million, two hundred thirty thousand, two hundred thirty-two".