store number in QByteArray

[sattu]

hi everyone,
i want to store a decimal value into a QByteArray.

int num = 43981;//abcd
QByteArray byte((const char*)&num,sizeof(num);//byte[0] =cd,byte[1]=ab

int num = 43981;//abcd
QByteArray byte((const char*)&num,sizeof(num);//byte[0] =cd,byte[1]=ab

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this stores the number.But it in reverse way.ie byte contain "cd ab".
But i want to store in "ab cd" way.

plz help me.