243463869 has 24 divisors (see below), whose sum is σ = 385351200. Its totient is φ = 146895840.

The previous prime is 243463849. The next prime is 243463907. The reversal of 243463869 is 968364342.

243463869 is a `hidden beast` number, since 2 + 4 + 3 + 4 + 638 + 6 + 9 = 666.

It is not a de Polignac number, because 243463869 - 2⁵ = 243463837 is a prime.

It is a super-2 number, since 2×243463869² = 118549311016898322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243463849) 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 23 ways as a sum of consecutive naturals, for example, 17302 + ... + 28040.

It is an arithmetic number, because the mean of its divisors is an integer number (16056300).

Almost surely, 2^243463869 is an apocalyptic number.

It is an amenable number.

243463869 is a deficient number, since it is larger than the sum of its proper divisors (141887331).

243463869 is a wasteful number, since it uses less digits than its factorization.

243463869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10985 (or 10982 counting only the distinct ones).

The product of its digits is 746496, while the sum is 45.

The square root of 243463869 is about 15603.3287794624. The cubic root of 243463869 is about 624.4219671163.

The spelling of 243463869 in words is "two hundred forty-three million, four hundred sixty-three thousand, eight hundred sixty-nine".