428000806280 has 16 divisors (see below), whose sum is σ = 963001814220. Its totient is φ = 171200322496.

The previous prime is 428000806279. The next prime is 428000806309. The reversal of 428000806280 is 82608000824.

It can be written as a sum of positive squares in 2 ways, for example, as 423798396004 + 4202410276 = 650998^2 + 64826^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5350010039 + ... + 5350010118.

Almost surely, 2^428000806280 is an apocalyptic number.

428000806280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

428000806280 is an abundant number, since it is smaller than the sum of its proper divisors (535001007940).

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

428000806280 is a wasteful number, since it uses less digits than its factorization.

428000806280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10700020168 (or 10700020164 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 38.

The spelling of 428000806280 in words is "four hundred twenty-eight billion, eight hundred six thousand, two hundred eighty".