223805220 has 48 divisors (see below), whose sum is σ = 638487360. Its totient is φ = 58554496.

The previous prime is 223805189. The next prime is 223805243. The reversal of 223805220 is 22508322.

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 15 ways as a sum of consecutive naturals, for example, 32010 + ... + 38369.

It is an arithmetic number, because the mean of its divisors is an integer number (13301820).

Almost surely, 2^223805220 is an apocalyptic number.

223805220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223805220 is an abundant number, since it is smaller than the sum of its proper divisors (414682140).

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

223805220 is a wasteful number, since it uses less digits than its factorization.

223805220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70444 (or 70442 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 223805220 is about 14960.1209888156. The cubic root of 223805220 is about 607.1417115418.

The spelling of 223805220 in words is "two hundred twenty-three million, eight hundred five thousand, two hundred twenty".