243472319 has 8 divisors (see below), whose sum is σ = 256391520. Its totient is φ = 230747616.

The previous prime is 243472297. The next prime is 243472343. The reversal of 243472319 is 913274342.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243472319 is a prime.

It is a super-2 number, since 2×243472319² = 118557540238475522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243472349) 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 7 ways as a sum of consecutive naturals, for example, 46052 + ... + 51065.

It is an arithmetic number, because the mean of its divisors is an integer number (32048940).

Almost surely, 2^243472319 is an apocalyptic number.

243472319 is a deficient number, since it is larger than the sum of its proper divisors (12919201).

243472319 is a wasteful number, since it uses less digits than its factorization.

243472319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97249.

The product of its digits is 36288, while the sum is 35.

The square root of 243472319 is about 15603.5995526673. The cubic root of 243472319 is about 624.4291910555.

The spelling of 243472319 in words is "two hundred forty-three million, four hundred seventy-two thousand, three hundred nineteen".