lunar-months

The Moon's Sidereal Period = 27.321661 Earth days.

The Synodic Month = 29.5305882 Earth days.

The Tropical Month = 27.32158214 Earth days.

The Anomalistic Month = 27.5545505 Earth days. 

The Nodical Month = 27.212220 Earth days. 

To verify these facts, here is a scan from the book Astrophysical Quantities by C.W.Allen (Emeritus Professor of Astronomy at London University), Third edition, Published by The Athlone Press, London, (reprinted) 1997, page 147, showing the relevant numerical data:-