243678043 has 8 divisors (see below), whose sum is σ = 278733312. Its totient is φ = 208683816.

The previous prime is 243678013. The next prime is 243678049. The reversal of 243678043 is 340876342.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 243678043 - 2¹⁷ = 243546971 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 243677993 and 243678011.

It is not an unprimeable number, because it can be changed into a prime (243678049) 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, 6355 + ... + 22972.

It is an arithmetic number, because the mean of its divisors is an integer number (34841664).

Almost surely, 2^243678043 is an apocalyptic number.

243678043 is a deficient number, since it is larger than the sum of its proper divisors (35055269).

243678043 is a wasteful number, since it uses less digits than its factorization.

243678043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30521.

The product of its (nonzero) digits is 96768, while the sum is 37.

The square root of 243678043 is about 15610.1903575837. The cubic root of 243678043 is about 624.6050137900.

The spelling of 243678043 in words is "two hundred forty-three million, six hundred seventy-eight thousand, forty-three".