It is a happy number.
273280 is nontrivially palindromic in base 3.
It is a tau number, because it is divible by the number of its divisors (64).
It is a nialpdrome in base 5.
It is a congruent number.
2273280 is an apocalyptic number.
273280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
273280 is the 427-th pentagonal number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 273280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (379440).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
273280 is an equidigital number, since it uses as much as digits as its factorization.
273280 is an evil number, because the sum of its binary digits is even.
The square root of 273280 is about 522.7618960865. The cubic root of 273280 is about 64.8937118938.
The spelling of 273280 in words is "two hundred seventy-three thousand, two hundred eighty".