282885396640 has 216 divisors, whose sum is σ = 854533018836. Its totient is φ = 88171776000.

The previous prime is 282885396559. The next prime is 282885396707. The reversal of 282885396640 is 46693588282.

It can be written as a sum of positive squares in 2 ways, for example, as 245591607184 + 37293789456 = 495572^2 + 193116^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 799540 + ... + 1097740.

Almost surely, 2^282885396640 is an apocalyptic number.

282885396640 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 282885396640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (427266509418).

282885396640 is an abundant number, since it is smaller than the sum of its proper divisors (571647622196).

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

282885396640 is a wasteful number, since it uses less digits than its factorization.

282885396640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298252 (or 298226 counting only the distinct ones).

The product of its (nonzero) digits is 39813120, while the sum is 61.

The spelling of 282885396640 in words is "two hundred eighty-two billion, eight hundred eighty-five million, three hundred ninety-six thousand, six hundred forty".