Le Hollandais Volant

<input id="range" type="range" min="0" max="10.0858" value="6.0868" step="0.0001" /> 
<input type="number" id="output" value="440" max="24000" min="1" step="1" />

<script>

'use strict';

let rangeElem = document.getElementById('range');
let outputElem = document.getElementById('output');

rangeElem.addEventListener('input', function() {
    let value = rangeElem.value;
    let adjusted = Math.exp(value);
    outputElem.value = adjusted.toFixed(0);
});

outputElem.addEventListener('input', function() {
    let value = outputElem.value;
	  let adjusted = Math.log(value);
    rangeElem.value = adjusted;
});

</script>