243980935 has 8 divisors (see below), whose sum is σ = 319393296. Its totient is φ = 177440640.

The previous prime is 243980903. The next prime is 243980939. The reversal of 243980935 is 539089342.

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

It is not a de Polignac number, because 243980935 - 2⁵ = 243980903 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 243980891 and 243980900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243980939) 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, 2217954 + ... + 2218063.

It is an arithmetic number, because the mean of its divisors is an integer number (39924162).

Almost surely, 2^243980935 is an apocalyptic number.

243980935 is a deficient number, since it is larger than the sum of its proper divisors (75412361).

243980935 is a wasteful number, since it uses less digits than its factorization.

243980935 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4436033.

The product of its (nonzero) digits is 233280, while the sum is 43.

The square root of 243980935 is about 15619.8890841132. The cubic root of 243980935 is about 624.8637014785.

It can be divided in two parts, 2439809 and 35, that added together give a square (2439844 = 1562²).

The spelling of 243980935 in words is "two hundred forty-three million, nine hundred eighty thousand, nine hundred thirty-five".