2520

Number
$2520$ (two thousand, five hundred and twenty) is:


 * $2^3 \times 3^2 \times 5 \times 7$


 * and so is the lowest common multiple of all the digits from $1$ to $9$


 * The sum of $4$ of its divisors in $6$ different ways:


 * The $6$th, and largest highly composite number after $1$, $2$, $6$, $12$, $60$ which is a divisor of all larger highly composite numbers

Also see

 * 2520 equals Sum of 4 Divisors in 6 Ways