Many digital cameras, surveillance systems, and screen recording tools (like Webex or LearningSpace ) generate numerical strings to name exported video files. "1032461" could be a unique ID for a specific recording in one of these systems.
You can often drag the file directly into a web browser (like Chrome or Firefox) to view it. 1032461 mp4
Beyond just video and audio, an MP4 can store metadata, subtitles, and still images in a single file. How to Open the File If you have this file and cannot open it: Many digital cameras
This free, open-source tool can play almost any MP4 regardless of the specific encoding. an MP4 can store metadata