243213006 has 8 divisors (see below), whose sum is σ = 486426024. Its totient is φ = 81071000.

The previous prime is 243212993. The next prime is 243213007. The reversal of 243213006 is 600312342.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

243213006 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243213007) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 20267745 + ... + 20267756.

It is an arithmetic number, because the mean of its divisors is an integer number (60803253).

Almost surely, 2^243213006 is an apocalyptic number.

243213006 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

243213006 is a wasteful number, since it uses less digits than its factorization.

243213006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40535506.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 243213006 is about 15595.2879421959. The cubic root of 243213006 is about 624.2074271367.

Adding to 243213006 its reverse (600312342), we get a palindrome (843525348).

The spelling of 243213006 in words is "two hundred forty-three million, two hundred thirteen thousand, six".