282680840 has 32 divisors (see below), whose sum is σ = 684958680. Its totient is φ = 104374272.

The previous prime is 282680831. The next prime is 282680857. The reversal of 282680840 is 48086282.

It can be written as a sum of positive squares in 4 ways, for example, as 144336196 + 138344644 = 12014^2 + 11762^2 .

It is a junction number, because it is equal to n+sod(n) for n = 282680794 and 282680803.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 271289 + ... + 272328.

Almost surely, 2^282680840 is an apocalyptic number.

282680840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

282680840 is an abundant number, since it is smaller than the sum of its proper divisors (402277840).

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

282680840 is a wasteful number, since it uses less digits than its factorization.

282680840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543641 (or 543637 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 38.

The square root of 282680840 is about 16813.1151188588. The cubic root of 282680840 is about 656.2945398039.

The spelling of 282680840 in words is "two hundred eighty-two million, six hundred eighty thousand, eight hundred forty".