223470 has 48 divisors (see below), whose sum is σ = 628992. Its totient is φ = 54720.

The previous prime is 223469. The next prime is 223481. The reversal of 223470 is 74322.

It is a happy number.

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

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1075 + ... + 1265.

It is an arithmetic number, because the mean of its divisors is an integer number (13104).

2²²³⁴⁷⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 223470, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (314496).

223470 is an abundant number, since it is smaller than the sum of its proper divisors (405522).

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

223470 is a wasteful number, since it uses less digits than its factorization.

223470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217 (or 214 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 223470 is about 472.7261363623. The cubic root of 223470 is about 60.6838430346.

Adding to 223470 its reverse (74322), we get a palindrome (297792).

It can be divided in two parts, 2234 and 70, that added together give a square (2304 = 48²).

The spelling of 223470 in words is "two hundred twenty-three thousand, four hundred seventy", and thus it is an iban number.