The square root of 428655616 is 20704.
It is a Duffinian number.
It is an unprimeable number.
Almost surely, 2428655616 is an apocalyptic number.
428655616 is the 20704-th square number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 428655616
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
428655616 is an frugal number, since it uses more digits than its factorization.
428655616 is an odious number, because the sum of its binary digits is odd.
The cubic root of 428655616 is about 753.9968057052.
The spelling of 428655616 in words is "four hundred twenty-eight million, six hundred fifty-five thousand, six hundred sixteen".