243080 has 32 divisors (see below), whose sum is σ = 561600. Its totient is φ = 94656.

The previous prime is 243077. The next prime is 243091. The reversal of 243080 is 80342.

243080 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2309 + ... + 2411.

It is an arithmetic number, because the mean of its divisors is an integer number (17550).

2²⁴³⁰⁸⁰ is an apocalyptic number.

243080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (280800).

243080 is an abundant number, since it is smaller than the sum of its proper divisors (318520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

243080 is a wasteful number, since it uses less digits than its factorization.

243080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173 (or 169 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 243080 is about 493.0314391598. The cubic root of 243080 is about 62.4093619528.

It can be divided in two parts, 24 and 3080, that multiplied together give a triangular number (73920 = T₃₈₄).

The spelling of 243080 in words is "two hundred forty-three thousand, eighty".