243230444 has 12 divisors (see below), whose sum is σ = 425762568. Its totient is φ = 121584000.

The previous prime is 243230443. The next prime is 243230447. The reversal of 243230444 is 444032342.

It is a super-2 number, since 2×243230444² = 118322097776874272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (243230443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25724 + ... + 33884.

It is an arithmetic number, because the mean of its divisors is an integer number (35480214).

Almost surely, 2^243230444 is an apocalyptic number.

It is an amenable number.

243230444 is a deficient number, since it is larger than the sum of its proper divisors (182532124).

243230444 is a wasteful number, since it uses less digits than its factorization.

243230444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15616 (or 15614 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 26.

The square root of 243230444 is about 15595.8470113040. The cubic root of 243230444 is about 624.2223450190. Note that the first 3 decimals are identical.

Adding to 243230444 its reverse (444032342), we get a palindrome (687262786).

The spelling of 243230444 in words is "two hundred forty-three million, two hundred thirty thousand, four hundred forty-four".