They never made that exact lens.
There's a 24-85 f3.5-4.5 that's OK IIRC. The non-constant aperture isn't something to worry about unless you're using a flash with the lens fully open.
There's also an older 28-70 f3.5-4.5 which is tiny, cheapish and sharp, and an older 28-105 f3.5-4.5 which is a great walk-about lens and gets really sharp stopped well down. There's also an older 28-85 f3.5-4.5 that's cheapish, but not as sharp as the other two. I've owned all 3 of these, and the 28-105 was my go-to lens until I moved to Sony - kept it for my film & IR digital bodies.
There is a Sigma 24-105 f4 ART lens that's supposed to be OK that's available in Nikon F mount.
IMO - and I'm sure plenty will disagree - 24-70 is a bit short at the longer end, and while it's nice to have the extra width, I'd rather have a bit more reach for walkabouts & use a separate wider lens for interiors etc (12-24, 16-35, 21-35 etc).