Order 1728.
650 conjugacy classes of subgroups.
The subgroup lattice has 298 nodes — too large to display as a diagram.
Splittings G = N ⋊ H with N normal; H ≅ G/N.
| N | H ≅ G/N | type |
|---|---|---|
| 13. C2×C9×Dic6 | C4 | semidirect |
| 36. C2×C9×Dic3 | Q8 | semidirect |
| 39. #4973 | C9 | direct (N × H) |
| 132. C2×Dic6 | C4×C9 | semidirect |
| 167. C3×C9 | #391 | semidirect |
| 198. C2×Dic3 | Q8×C9 | semidirect |
| 251. C9 | #4973 | direct (N × H) |
| 290. C3 | C9×#391 | semidirect |
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
| subgroup | index |
|---|---|
| C22×C9×Dic6 | 2 |
| C2×C3×C9×C4⋊C4 | 2 |
| C2×C4×C9×Dic3 | 2 |
| C9×C3⋊#95 | 2 |
| C3×#4973 | 3 |
| C9×#391 | 3 |