243841056 has 24 divisors (see below), whose sum is σ = 640083024. Its totient is φ = 81280320.

The previous prime is 243841049. The next prime is 243841061. The reversal of 243841056 is 650148342.

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1269910 + ... + 1270101.

It is an arithmetic number, because the mean of its divisors is an integer number (26670126).

Almost surely, 2^243841056 is an apocalyptic number.

It is an amenable number.

243841056 is an abundant number, since it is smaller than the sum of its proper divisors (396241968).

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

243841056 is a wasteful number, since it uses less digits than its factorization.

243841056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2540024 (or 2540016 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 243841056 is about 15615.4108495422. The cubic root of 243841056 is about 624.7442631588.

Adding to 243841056 its reverse (650148342), we get a palindrome (893989398).

The spelling of 243841056 in words is "two hundred forty-three million, eight hundred forty-one thousand, fifty-six".