Density distributions, pair correlation functions, momentum distributions and form factors of 4He nucleus are calculated. Long distance asymptotic behavior of density distributions and pair correlation functions is studied. Comparison with experimental data is carried out for charge form factors and momentum distributions, which calculated for different potentials of nucleon-nucleon interaction. On the example of proton momentum distribution in 4He it is shown that for large momenta asymptotic behavior is determined by short-range repulsion in potential of nuclear interaction.