It is a tau number, because it is divible by the number of its divisors (240).
It is an unprimeable number.
Almost surely, 2699470640 is an apocalyptic number.
699470640 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 699470640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1329164928).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
699470640 is a wasteful number, since it uses less digits than its factorization.
699470640 is an evil number, because the sum of its binary digits is even.
The square root of 699470640 is about 26447.5072549380. The cubic root of 699470640 is about 887.6801258411.
The spelling of 699470640 in words is "six hundred ninety-nine million, four hundred seventy thousand, six hundred forty".