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modest n.  and  practical n.

First numbers that belong to both sets:

666, 812, 888, 1218, 1254, 1624, 1672, 2436, 2844, 3066, 3248, 3654, 3666, 4060, 4074, 4088, 4266, 4872, 4888, 5684, 5688, 6090, 6162, 6496, 6666, 8036, 8148, 8216, 8888, 12036, 12054, 12222, 12324, 12444, 16048, 16072, 16074, 16296, 16432, 16592, 18054, 18486, 18666, 20060, 20148, 20202, 20370, 20540, 20740, 24072, 24108, 24444, 24648, 24888, 28084, 28518, 28756, 30090, 30222, 30810, 32096, 32144, 32148, 32592, 32864, 36108, 36162, 36666, 36972, 40120, 40180, 40296, 40404, 40740, 42126, 44148, 44814, 48108, 48144, 48216, 48222, 48888, 50370, 52074, 52962, 54162, 56168, 56252, 60180, 60270, 60444, 60606, 64144, 64148, 64192, 64288, 64296, 64592, 66198, 66222, 70074, 70518, 72162, 72216, 72324, 72666, 78234, 80088, 80180, 80240, 80360, 80370, 80444, 80592, 80740, 80808, 83636, 84162, 84252, 84378, 88264, 88296, 88396, 90270, 90486, 90666, 96162, 96216, 96222, 96288, 96324, 96432, 96444, 96888, 100110, 100300, 100540, 100740, 101010, 104148, 104312, 104468, 108324, 108486, 110370, 110814, 112216, 112252, 112336, 112504, 112518, 112592, 120054, 120132, 120198, 120270, 120360, 120540, 120648, 120666, 120888, 121212, 125454, 126378, 126666, 128216, 128288, 128296, 128384, 128432, 128576, 128592, 130962, 132396, 132444, 132594, 136444, 136612, 138666, 140148, 140154, 140180, 140420, 140740, 140756, 141414, 144222, 144324, 144432, 144486, 144648, 144666, 150450, 150810, 152684, 154518, 156222, 156468, 156702, 160072, 160132, 160176, 160264, 160360, 160480, 160540, 160720, 160740, 160864, 160888, 161616, 162486, 167272, 168216, 168324, 168378, 168504, 168756, 168888, 170370, 176528, 176592, 176792, 176814, 180198, 180222, 180486, 180540, 180810, 180972, 181818, 184828, 184888, 192296, 192324, 192432, 192444, 192576, 192648, 192864, 192888, 196252, 196588, 198594, 198666, 200220, 200396, 200540, 200600, 200900, 202020, 204444, 204612, 204666, 204918, 208296, 208624, 208936, 208962, 210222, 210270, 210630, 216486, 216648, 216972, 220242, 220660, 220740, 222222, 224288, 224432, 224504, 224672, 224756, 228684, 234702, 238518, 240108, 240198, 240264.

Some larger examples :