243246326 has 4 divisors (see below), whose sum is σ = 364869492. Its totient is φ = 121623162.

The previous prime is 243246307. The next prime is 243246383. The reversal of 243246326 is 623642342.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×243246326² = 118337550224996552, 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 = 243246292 and 243246301.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 60811580 + ... + 60811583.

It is an arithmetic number, because the mean of its divisors is an integer number (91217373).

Almost surely, 2^243246326 is an apocalyptic number.

243246326 is a deficient number, since it is larger than the sum of its proper divisors (121623166).

243246326 is a wasteful number, since it uses less digits than its factorization.

243246326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121623165.

The product of its digits is 41472, while the sum is 32.

The square root of 243246326 is about 15596.3561770049. The cubic root of 243246326 is about 624.2359311520.

Adding to 243246326 its reverse (623642342), we get a palindrome (866888668).

The spelling of 243246326 in words is "two hundred forty-three million, two hundred forty-six thousand, three hundred twenty-six".