e-TeX, 21 bytes
\the\numexpr`*`j\bye It contains an invisible control character with code 19 (0x13) before the asterisk. A version with printable ASCII characters needs two more bytes:
\the\numexpr`^^S*`j\bye In TeX ` takes the character code of the next token:
[0x13](^^S): 19j: 106
\numexpr calculates: 19 * 106 = 2014
The result is a DVI file with "2014" on the first page.
Variant with 2014 as page number:
\pageno\numexpr`^^S*`j~\bye (25 bytes, if ^^S is replaced by the byte with character code 19).