428210566884 has 27 divisors (see below), whose sum is σ = 1082431080003. Its totient is φ = 142735546872.

The previous prime is 428210566879. The next prime is 428210566907. The reversal of 428210566884 is 488665012824.

The square root of 428210566884 is 654378.

It is a perfect power (a square), and thus also a powerful number.

It is a super-2 number, since 2×428210566884² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 428210566884.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3871737 + ... + 3980799.

Almost surely, 2^428210566884 is an apocalyptic number.

428210566884 is the 654378-th square number.

It is an amenable number.

428210566884 is an abundant number, since it is smaller than the sum of its proper divisors (654220513119).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

428210566884 is an frugal number, since it uses more digits than its factorization.

428210566884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218136 (or 109068 counting only the distinct ones).

The product of its (nonzero) digits is 5898240, while the sum is 54.

The spelling of 428210566884 in words is "four hundred twenty-eight billion, two hundred ten million, five hundred sixty-six thousand, eight hundred eighty-four".