Per version "@types/kendo-ui": "2019.3.0" , typings chart label margins and padding (ChartLegendMargin, ChartLegendPadding, ChartLegendLabelsMargin, ChartCategoryAxisItemTitleMargin,... ) don't accept number values, only a dictionary with top, bottom, left and right.

Numbers are correct values for these properties, as shown on  https://docs.telerik.com/kendo-ui/api/javascript/dataviz/ui/chart/configuration/series.labels.padding