223345320 has 256 divisors, whose sum is σ = 797817600. Its totient is φ = 49397760.

The previous prime is 223345319. The next prime is 223345333. The reversal of 223345320 is 23543322.

It is a Harshad number since it is a multiple of its sum of digits (24).

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 63 ways as a sum of consecutive naturals, for example, 830146 + ... + 830414.

It is an arithmetic number, because the mean of its divisors is an integer number (3116475).

Almost surely, 2^223345320 is an apocalyptic number.

223345320 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 223345320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (398908800).

223345320 is an abundant number, since it is smaller than the sum of its proper divisors (574472280).

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

223345320 is a wasteful number, since it uses less digits than its factorization.

223345320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348 (or 344 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 24.

The square root of 223345320 is about 14944.7422192556. The cubic root of 223345320 is about 606.7255521207.

Adding to 223345320 its reverse (23543322), we get a palindrome (246888642).

It can be divided in two parts, 223 and 345320, that added together give a palindrome (345543).

The spelling of 223345320 in words is "two hundred twenty-three million, three hundred forty-five thousand, three hundred twenty".