440 (number)
= 440 (number)
{wiki=440_(number)}
The number 440 can refer to several things depending on the context: 1. **Mathematics**: It is an integer that comes after 439 and before 441. It is an even number and can be factored into its prime components as \\( 2^3 \\times 5 \\times 11 \\). 2. **Music**: In music, 440 Hz refers to the standard pitch for tuning musical instruments, known as "A440" or "concert pitch.