Order 1728.
490 conjugacy classes of subgroups.
The subgroup lattice has 296 nodes — too large to display as a diagram.
Splittings G = N ⋊ H with N normal; H ≅ G/N.
| N | H ≅ G/N | type |
|---|---|---|
| 13. C4×C9×Dic3 | C4 | semidirect |
| 40. #4651 | C9 | direct (N × H) |
| 129. C4×Dic3 | C4×C9 | semidirect |
| 162. C3×C9 | #383 | semidirect |
| 247. C9 | #4651 | direct (N × H) |
| 288. C3 | C9×#383 | semidirect |
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
| subgroup | index |
|---|---|
| C2×C4×C9×Dic3 | 2 |
| C3×C9×#95 | 2 |
| C9×C3⋊#95 | 2 |
| C3×#4651 | 3 |
| C9×#383 | 3 |