If my LTE EARFCN for b40 is 39150 then what will be contiguous and non contiguous EARFCN?
It depends upon sepration between centre frequencies of and bw of carrier.
3GPP TS 36.101
5.7.1A Channel spacing for CA
“For intra-band non-contiguous carrier aggregation the channel spacing between two E-UTRA component carriers in different sub-blocks shall be larger than the nominal channel spacing defined in this subclause.”
Refer to above 3gpp guideline and coresponding manual calculation.