223985449220 has 96 divisors (see below), whose sum is σ = 554843973600. Its totient is φ = 75153383424.

The previous prime is 223985449213. The next prime is 223985449243. The reversal of 223985449220 is 22944589322.

223985449220 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 16 ways, for example, as 12722035264 + 211263413956 = 112792^2 + 459634^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 745535 + ... + 1001894.

It is an arithmetic number, because the mean of its divisors is an integer number (5779624725).

Almost surely, 2^223985449220 is an apocalyptic number.

223985449220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223985449220 is an abundant number, since it is smaller than the sum of its proper divisors (330858524380).

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

223985449220 is a wasteful number, since it uses less digits than its factorization.

223985449220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1747497 (or 1747495 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 50.

The spelling of 223985449220 in words is "two hundred twenty-three billion, nine hundred eighty-five million, four hundred forty-nine thousand, two hundred twenty".