228517985024 has 144 divisors (see below), whose sum is σ = 541119860736. Its totient is φ = 94249267200.

The previous prime is 228517984997. The next prime is 228517985027. The reversal of 228517985024 is 420589715822.

228517985024 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (228517985027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10043549 + ... + 10066275.

Almost surely, 2^228517985024 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228517985024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (270559930368).

228517985024 is an abundant number, since it is smaller than the sum of its proper divisors (312601875712).

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

228517985024 is a wasteful number, since it uses less digits than its factorization.

228517985024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22962 (or 22948 counting only the distinct ones).

The product of its (nonzero) digits is 3225600, while the sum is 53.

The spelling of 228517985024 in words is "two hundred twenty-eight billion, five hundred seventeen million, nine hundred eighty-five thousand, twenty-four".