It is a tau number, because it is divible by the number of its divisors (480).
It is an unprimeable number.
Almost surely, 2725168640 is an apocalyptic number.
725168640 is a gapful number since it is divisible by the number (70) 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 725168640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1410659712).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
725168640 is a wasteful number, since it uses less digits than its factorization.
725168640 is an odious number, because the sum of its binary digits is odd.
The square root of 725168640 is about 26928.9554197707. The cubic root of 725168640 is about 898.4205383757.
The spelling of 725168640 in words is "seven hundred twenty-five million, one hundred sixty-eight thousand, six hundred forty".