Multipling 274400 by its product of nonzero digits (224), we get a square (61465600 = 78402).
274400 divided by its product of nonzero digits (224) gives a triangular number (1225 = T49).
Adding to 274400 its reverse (4472), we get a palindrome (278872).
It is a nialpdrome in base 7 and base 14.
It is a zygodrome in base 7.
It is a congruent number.
274400 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
2274400 is an apocalyptic number.
274400 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 274400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (390600).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
274400 is an equidigital number, since it uses as much as digits as its factorization.
274400 is an odious number, because the sum of its binary digits is odd.
The square root of 274400 is about 523.8320341484. The cubic root of 274400 is about 64.9822436706.
The spelling of 274400 in words is "two hundred seventy-four thousand, four hundred", and thus it is an iban number.