Square numbers containing all 10 digits unrepeated:

32043² = 1026753849
32286² = 1042385796
33144² = 1098524736
35172² = 1237069584
39147² = 1532487609
45624² = 2081549376
55446² = 3074258916
68763² = 4728350169
83919² = 7042398561
99066² = 9814072356