232223220 has 192 divisors, whose sum is σ = 754871040. Its totient is φ = 59222016.

The previous prime is 232223219. The next prime is 232223239. The reversal of 232223220 is 22322232.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 232223193 and 232223202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1694992 + ... + 1695128.

It is an arithmetic number, because the mean of its divisors is an integer number (3931620).

Almost surely, 2^232223220 is an apocalyptic number.

232223220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 232223220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (377435520).

232223220 is an abundant number, since it is smaller than the sum of its proper divisors (522647820).

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

232223220 is a wasteful number, since it uses less digits than its factorization.

232223220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271 (or 263 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 232223220 is about 15238.8720054996. The cubic root of 232223220 is about 614.6603716687.

Adding to 232223220 its reverse (22322232), we get a palindrome (254545452).

The spelling of 232223220 in words is "two hundred thirty-two million, two hundred twenty-three thousand, two hundred twenty".