243204326 has 8 divisors (see below), whose sum is σ = 365055960. Its totient is φ = 121519008.

The previous prime is 243204301. The next prime is 243204341. The reversal of 243204326 is 623402342.

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

It is a super-2 number, since 2×243204326² = 118296688370228552, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 243204295 and 243204304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37856 + ... + 43811.

It is an arithmetic number, because the mean of its divisors is an integer number (45631995).

Almost surely, 2^243204326 is an apocalyptic number.

243204326 is a deficient number, since it is larger than the sum of its proper divisors (121851634).

243204326 is a wasteful number, since it uses less digits than its factorization.

243204326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83158.

The product of its (nonzero) digits is 6912, while the sum is 26.

The square root of 243204326 is about 15595.0096505260. The cubic root of 243204326 is about 624.2000012935.

Adding to 243204326 its reverse (623402342), we get a palindrome (866606668).

The spelling of 243204326 in words is "two hundred forty-three million, two hundred four thousand, three hundred twenty-six".