243460 has 48 divisors (see below), whose sum is σ = 612864. Its totient is φ = 79488.

The previous prime is 243437. The next prime is 243461. The reversal of 243460 is 64342.

243460 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (243461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5157 + ... + 5203.

It is an arithmetic number, because the mean of its divisors is an integer number (12768).

2²⁴³⁴⁶⁰ is an apocalyptic number.

243460 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 243460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (306432).

243460 is an abundant number, since it is smaller than the sum of its proper divisors (369404).

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

243460 is a wasteful number, since it uses less digits than its factorization.

243460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100 (or 98 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 243460 is about 493.4166596296. The cubic root of 243460 is about 62.4418659437.

Adding to 243460 its product of nonzero digits (576), we get a square (244036 = 494²).

It can be divided in two parts, 243 and 460, that added together give a triangular number (703 = T₃₇).

The spelling of 243460 in words is "two hundred forty-three thousand, four hundred sixty".