282821328 has 40 divisors (see below), whose sum is σ = 811803200. Its totient is φ = 94273632.

The previous prime is 282821323. The next prime is 282821353. The reversal of 282821328 is 823128282.

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

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 282821292 and 282821301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (282821323) 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, 326908 + ... + 327771.

It is an arithmetic number, because the mean of its divisors is an integer number (20295080).

Almost surely, 2^282821328 is an apocalyptic number.

It is an amenable number.

282821328 is an abundant number, since it is smaller than the sum of its proper divisors (528981872).

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

282821328 is a wasteful number, since it uses less digits than its factorization.

282821328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 654696 (or 654684 counting only the distinct ones).

The product of its digits is 24576, while the sum is 36.

The square root of 282821328 is about 16817.2925288228. The cubic root of 282821328 is about 656.4032445388.

The spelling of 282821328 in words is "two hundred eighty-two million, eight hundred twenty-one thousand, three hundred twenty-eight".