223223628 has 54 divisors (see below), whose sum is σ = 552143676. Its totient is φ = 70181136.

The previous prime is 223223597. The next prime is 223223629. The reversal of 223223628 is 826322322.

It is a super-3 number, since 3×223223628³ (a number of 26 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 223223595 and 223223604.

It is not an unprimeable number, because it can be changed into a prime (223223629) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 983251 + ... + 983477.

Almost surely, 2^223223628 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 223223628, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (276071838).

223223628 is an abundant number, since it is smaller than the sum of its proper divisors (328920048).

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

223223628 is a wasteful number, since it uses less digits than its factorization.

223223628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499 (or 251 counting only the distinct ones).

The product of its digits is 13824, while the sum is 30.

The square root of 223223628 is about 14940.6702660891. The cubic root of 223223628 is about 606.6153385441.

The spelling of 223223628 in words is "two hundred twenty-three million, two hundred twenty-three thousand, six hundred twenty-eight".