223020 has 96 divisors (see below), whose sum is σ = 806400. Its totient is φ = 50112.
The previous prime is 223019. The next prime is 223037. The reversal of 223020 is 20322.
It is a Harshad number since it is a multiple of its sum of digits (9).
It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.
It is a junction number, because it is equal to n+sod(n) for n = 222993 and 223011.
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, 3751 + ... + 3809.
It is an arithmetic number, because the mean of its divisors is an integer number (8400).
2223020 is an apocalyptic number.
223020 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 223020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (403200).
223020 is an abundant number, since it is smaller than the sum of its proper divisors (583380).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
223020 is a wasteful number, since it uses less digits than its factorization.
223020 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 84 (or 76 counting only the distinct ones).
The product of its (nonzero) digits is 24, while the sum is 9.
The square root of 223020 is about 472.2499338274. The cubic root of 223020 is about 60.6430827838.
Adding to 223020 its reverse (20322), we get a palindrome (243342).
The spelling of 223020 in words is "two hundred twenty-three thousand, twenty", and thus it is an iban number.
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