228508280450 has 54 divisors (see below), whose sum is σ = 431891784891. Its totient is φ = 89949847680.

The previous prime is 228508280449. The next prime is 228508280459. The reversal of 228508280450 is 54082805822.

It can be written as a sum of positive squares in 5 ways, for example, as 42391103881 + 186117176569 = 205891^2 + 431413^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=338015.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (228508280459) by changing a digit.

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 26 ways as a sum of consecutive naturals, for example, 226469546 + ... + 226470554.

Almost surely, 2^228508280450 is an apocalyptic number.

228508280450 is a deficient number, since it is larger than the sum of its proper divisors (203383504441).

228508280450 is an frugal number, since it uses more digits than its factorization.

228508280450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2164 (or 1083 counting only the distinct ones).

The product of its (nonzero) digits is 409600, while the sum is 44.

The spelling of 228508280450 in words is "two hundred twenty-eight billion, five hundred eight million, two hundred eighty thousand, four hundred fifty".