2828 is an admirable number.
2828 is an undulating number in base 10.
It is a plaindrome in base 12.
It is a nialpdrome in base 15.
It is an unprimeable number.
2828 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
It is an upside-down number.
22828 is an apocalyptic number.
2828 is a gapful number since it is divisible by the number (28) formed by its first and last digit.
It is an amenable number.
2828 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2828 is a wasteful number, since it uses less digits than its factorization.
2828 is an odious number, because the sum of its binary digits is odd.
The square root of 2828 is about 53.1789432012. The cubic root of 2828 is about 14.1414237133.
The spelling of 2828 in words is "two thousand, eight hundred twenty-eight".