243304413 has 8 divisors (see below), whose sum is σ = 353897376. Its totient is φ = 147457200.

The previous prime is 243304409. The next prime is 243304423. The reversal of 243304413 is 314403342.

243304413 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 243304413 - 2² = 243304409 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243304423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3686398 + ... + 3686463.

It is an arithmetic number, because the mean of its divisors is an integer number (44237172).

Almost surely, 2^243304413 is an apocalyptic number.

It is an amenable number.

243304413 is a deficient number, since it is larger than the sum of its proper divisors (110592963).

243304413 is a wasteful number, since it uses less digits than its factorization.

243304413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7372875.

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 243304413 is about 15598.2182636351. The cubic root of 243304413 is about 624.2856161870.

Adding to 243304413 its reverse (314403342), we get a palindrome (557707755).

The spelling of 243304413 in words is "two hundred forty-three million, three hundred four thousand, four hundred thirteen".