243045880 has 96 divisors (see below), whose sum is σ = 694027440. Its totient is φ = 75747840.

The previous prime is 243045871. The next prime is 243045893. The reversal of 243045880 is 88540342.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15924 + ... + 27196.

Almost surely, 2^243045880 is an apocalyptic number.

243045880 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 243045880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (347013720).

243045880 is an abundant number, since it is smaller than the sum of its proper divisors (450981560).

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

243045880 is a wasteful number, since it uses less digits than its factorization.

243045880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11309 (or 11298 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 34.

The square root of 243045880 is about 15589.9288003506. The cubic root of 243045880 is about 624.0644177963.

The spelling of 243045880 in words is "two hundred forty-three million, forty-five thousand, eight hundred eighty".