243827280 has 160 divisors (see below), whose sum is σ = 846374400. Its totient is φ = 64516608.

The previous prime is 243827279. The next prime is 243827291. The reversal of 243827280 is 82728342.

243827280 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 338761 + ... + 339479.

It is an arithmetic number, because the mean of its divisors is an integer number (5289840).

Almost surely, 2^243827280 is an apocalyptic number.

243827280 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 243827280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (423187200).

243827280 is an abundant number, since it is smaller than the sum of its proper divisors (602547120).

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

243827280 is a wasteful number, since it uses less digits than its factorization.

243827280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 898 (or 886 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The square root of 243827280 is about 15614.9697406047. The cubic root of 243827280 is about 624.7324977911.

The spelling of 243827280 in words is "two hundred forty-three million, eight hundred twenty-seven thousand, two hundred eighty".