130904640 is a `hidden beast` number, since 13 + 0 + 9 + 0 + 4 + 640 = 666.
It is an unprimeable number.
Almost surely, 2130904640 is an apocalyptic number.
130904640 is a gapful number since it is divisible by the number (10) 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 130904640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (234696000).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
130904640 is a wasteful number, since it uses less digits than its factorization.
130904640 is an odious number, because the sum of its binary digits is odd.
The square root of 130904640 is about 11441.3565629256. The cubic root of 130904640 is about 507.7520438293.
The spelling of 130904640 in words is "one hundred thirty million, nine hundred four thousand, six hundred forty".