Adding to 668304000 its reverse (403866), we get a palindrome (668707866).
It is an unprimeable number.
Almost surely, 2668304000 is an apocalyptic number.
668304000 is a gapful number since it is divisible by the number (60) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 668304000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1603929600).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
668304000 is a wasteful number, since it uses less digits than its factorization.
668304000 is an evil number, because the sum of its binary digits is even.
The square root of 668304000 is about 25851.5763542574. The cubic root of 668304000 is about 874.2950512542.
The spelling of 668304000 in words is "six hundred sixty-eight million, three hundred four thousand".