Multipling 774400 by its product of nonzero digits (784), we get a square (607129600 = 246402).
Adding to 774400 its reverse (4477), we get a palindrome (778877).
It is a happy number.
The square root of 774400 is 880.
It is a Duffinian number.
It is a nialpdrome in base 10.
It is a zygodrome in base 10.
It is an unprimeable number.
2774400 is an apocalyptic number.
774400 is the 880-th square number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 774400
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
774400 is a wasteful number, since it uses less digits than its factorization.
774400 is an odious number, because the sum of its binary digits is odd.
The cubic root of 774400 is about 91.8308169866.
The spelling of 774400 in words is "seven hundred seventy-four thousand, four hundred", and thus it is an iban number.