Subtracting 43778 from its reverse (87734), we obtain a triangular number (43956 = T296).
It is a Curzon number.
It is a self number, because there is not a number n which added to its sum of digits gives 43778.
It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 43778.
243778 is an apocalyptic number.
43778 is a wasteful number, since it uses less digits than its factorization.
43778 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 121.
The square root of 43778 is about 209.2319287298. The cubic root of 43778 is about 35.2440091759.
The spelling of 43778 in words is "forty-three thousand, seven hundred seventy-eight".