243241560 has 192 divisors, whose sum is σ = 854193600. Its totient is φ = 59845632.

The previous prime is 243241549. The next prime is 243241573. The reversal of 243241560 is 65142342.

243241560 is a `hidden beast` number, since 243 + 2 + 415 + 6 + 0 = 666.

It is a super-2 number, since 2×243241560² = 118332913022467200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 239614 + ... + 240626.

It is an arithmetic number, because the mean of its divisors is an integer number (4448925).

Almost surely, 2^243241560 is an apocalyptic number.

243241560 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 243241560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (427096800).

243241560 is an abundant number, since it is smaller than the sum of its proper divisors (610952040).

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

243241560 is a wasteful number, since it uses less digits than its factorization.

243241560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1082 (or 1075 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 243241560 is about 15596.2033841573. The cubic root of 243241560 is about 624.2318541766.

The spelling of 243241560 in words is "two hundred forty-three million, two hundred forty-one thousand, five hundred sixty".