243900943 has 8 divisors (see below), whose sum is σ = 286541136. Its totient is φ = 204672000.

The previous prime is 243900941. The next prime is 243901027. The reversal of 243900943 is 349009342.

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

It is not a de Polignac number, because 243900943 - 2¹ = 243900941 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 243900899 and 243900908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243900941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 852658 + ... + 852943.

It is an arithmetic number, because the mean of its divisors is an integer number (35817642).

Almost surely, 2^243900943 is an apocalyptic number.

243900943 is a deficient number, since it is larger than the sum of its proper divisors (42640193).

243900943 is a wasteful number, since it uses less digits than its factorization.

243900943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1705625.

The product of its (nonzero) digits is 23328, while the sum is 34.

The square root of 243900943 is about 15617.3282926370. The cubic root of 243900943 is about 624.7954043923.

The spelling of 243900943 in words is "two hundred forty-three million, nine hundred thousand, nine hundred forty-three".