228421064280 has 64 divisors (see below), whose sum is σ = 689801414400. Its totient is φ = 60508886400.

The previous prime is 228421064243. The next prime is 228421064293. The reversal of 228421064280 is 82460124822.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6284890 + ... + 6321129.

It is an arithmetic number, because the mean of its divisors is an integer number (10778147100).

Almost surely, 2^228421064280 is an apocalyptic number.

228421064280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228421064280 is an abundant number, since it is smaller than the sum of its proper divisors (461380350120).

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

228421064280 is a wasteful number, since it uses less digits than its factorization.

228421064280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12606184 (or 12606180 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 39.

The spelling of 228421064280 in words is "two hundred twenty-eight billion, four hundred twenty-one million, sixty-four thousand, two hundred eighty".