243304869 has 8 divisors (see below), whose sum is σ = 324622912. Its totient is φ = 162095040.

The previous prime is 243304847. The next prime is 243304877. The reversal of 243304869 is 968403342.

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

It is not a de Polignac number, because 243304869 - 2⁵ = 243304837 is a prime.

It is a super-2 number, since 2×243304869² = 118394518558214322, 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 (243304169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21652 + ... + 30909.

It is an arithmetic number, because the mean of its divisors is an integer number (40577864).

Almost surely, 2^243304869 is an apocalyptic number.

It is an amenable number.

243304869 is a deficient number, since it is larger than the sum of its proper divisors (81318043).

243304869 is a wasteful number, since it uses less digits than its factorization.

243304869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54107.

The product of its (nonzero) digits is 124416, while the sum is 39.

The square root of 243304869 is about 15598.2328806823. The cubic root of 243304869 is about 624.2860061978.

The spelling of 243304869 in words is "two hundred forty-three million, three hundred four thousand, eight hundred sixty-nine".