Just reading Ron Rivest's explanation of MD4 the hash uses two round constants one $ \text{5A827999}$ on round $2$ and the other $\text{6ED9EBA1}$ on round $3$.
I think they are supposed to be hex representation of square root of $2$ and $3$. But $\sqrt{2} = 1.\text{6A09E667F} $ and
$\sqrt{3} = 1.\text{BB67AE858}$
which are very different from the the values given, unless of course I or my gnome-calculator made a mistake with the calculation. Any ideas?