Date in text formatting

[Rossella]

Hi everybody,
hi create a text colum where i want to have a date in letters (es. march 2024)
My initial value expression is 

CONCATENATE(INDEX(
LIST(
"Gen", "Feb", "Mar", "Apr", "Mag", "Giu",
"Lug", "Ago", "Set", "Ott", "Nov", "Dic"
),
MONTH(TODAY())
), " ", YEAR(TODAY()))

the expression it's true and in my google sheets return value mar 2024, but in the app value is 45352

i also tried creating a virtual column 
TEXT([Month]) but result it's the same?

Where am i wrong

thank you in advantage

[AleksiAlkio · Accepted solution]

By any chance, your column type in your gSheet is set as number or automatic. Change it to "Plain text" and see if that solves the challenge.