280868082 has 16 divisors (see below), whose sum is σ = 612803232. Its totient is φ = 85111520.

The previous prime is 280868057. The next prime is 280868123.

280868082 is nontrivially palindromic in base 10.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 2127723 + ... + 2127854.

It is an arithmetic number, because the mean of its divisors is an integer number (38300202).

Almost surely, 2^280868082 is an apocalyptic number.

280868082 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

280868082 is an abundant number, since it is smaller than the sum of its proper divisors (331935150).

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

280868082 is a wasteful number, since it uses less digits than its factorization.

280868082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4255593.

The product of its (nonzero) digits is 98304, while the sum is 42.

The square root of 280868082 is about 16759.1193682723. The cubic root of 280868082 is about 654.8886487867. Note that the first 3 decimals are identical.

The spelling of 280868082 in words is "two hundred eighty million, eight hundred sixty-eight thousand, eighty-two".