940

940 = 2 x 2 x 5 x 47.

940 has a unique representation as a sum of three squares: 940 = 2² + 6² + 30².

940 is the sum of the squares for four consecutive primes: 940 = 11² + 13² + 17² + 19².

The sum of the divisors of 940 is a triangular number: 1 + 2 + 4 + 5 + 10 + 20 + 47 + 94 + 188 + 235 + 470 + 940 = 2016, the 63rd triangular number.

940 is the maximum number of regions into which 15 spheres can divide space.

Source: What's Special About This Number?