Order 26848.
74 conjugacy classes of subgroups.
| subgroup | G/H | |
|---|---|---|
| center, Frattini | C22 | C22×D839 |
| commutator, socle, cosocle | C22×C839 | C23 |
| Fitting | C4⋊C4×C839 | C2 |
| prime radical | C22×D839 | C22 |
| hypercenter | C4⋊C4 | D839 |
| hypocenter | C839 | C22⋊Q8 |
| LCS | G ▷ C22×C839 ▷ C839 | |
| UCS | C1 ◁ C22 ◁ C4⋊C4 | |
Splittings G = N ⋊ H with N normal; H ≅ G/N.
| N | H ≅ G/N | type |
|---|---|---|
| 1. C2×Dic1678 | C2 | semidirect |
| 3. Dic839⋊C4 | C2 | semidirect |
| 4. Dic839⋊C4 | C2 | semidirect |
| 7. C4⋊C4×C839 | C2 | semidirect |
| 20. C2×D839 | Q8 | semidirect |
| 31. C839 | C22⋊Q8 | semidirect |
| 37. C4⋊C4 | D839 | semidirect |
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
| subgroup | index |
|---|---|
| C2×Dic1678 | 2 |
| C2×C4×D839 | 2 |
| Dic839⋊C4 | 2 |
| (C2×D839)⋊C4 | 2 |
| C4⋊C4×C839 | 2 |
| C22⋊Q8 | 839 |