I detect a little confusion between numerology (fantasy land) and precession(Science)

There is nothing remarkable about a measuring system using a base of 12,
360 degrees in a circle, 12 pennies in a shiiling, etc. That the numbers have a meaning is obvious, they are constituents of the precessionary cycle. Though I will admit the 432000 has no obvious derivation.

400000 and 413000 have a explanation in the previous link.
There is a periodicity to extinction events that many accept but this is on a Ma timescale.
It is estimated that a 1 km or greater body collides with Earth about once every 0.5 million years. We have only catalogued a small fraction of the potentially hazardous bodies.(I cannot find any convincing literature for this)
As plotting NEOs is a relatively new underfunded science and our knowledge is still incomplete. I keep a very open mind on the subject.


https://www.space.com/41260-near-earth-asteroid-detection-video-nasa.html