282721056 has 48 divisors (see below), whose sum is σ = 747841248. Its totient is φ = 93516800.

The previous prime is 282721051. The next prime is 282721057. The reversal of 282721056 is 650127282.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (282721051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1336 + ... + 23816.

It is an arithmetic number, because the mean of its divisors is an integer number (15580026).

Almost surely, 2^282721056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 282721056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (373920624).

282721056 is an abundant number, since it is smaller than the sum of its proper divisors (465120192).

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

282721056 is a wasteful number, since it uses less digits than its factorization.

282721056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22625 (or 22617 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 282721056 is about 16814.3110474381. The cubic root of 282721056 is about 656.3256612265.

The spelling of 282721056 in words is "two hundred eighty-two million, seven hundred twenty-one thousand, fifty-six".