223047020 has 144 divisors (see below), whose sum is σ = 573027840. Its totient is φ = 72648576.

The previous prime is 223047001. The next prime is 223047029. The reversal of 223047020 is 20740322.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 223046983 and 223047001.

It is not an unprimeable number, because it can be changed into a prime (223047029) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2823341 + ... + 2823419.

It is an arithmetic number, because the mean of its divisors is an integer number (3979360).

Almost surely, 2^223047020 is an apocalyptic number.

223047020 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 223047020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (286513920).

223047020 is an abundant number, since it is smaller than the sum of its proper divisors (349980820).

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

223047020 is a wasteful number, since it uses less digits than its factorization.

223047020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212 (or 203 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 223047020 is about 14934.7587861338. The cubic root of 223047020 is about 606.4553175693.

Adding to 223047020 its reverse (20740322), we get a palindrome (243787342).

The spelling of 223047020 in words is "two hundred twenty-three million, forty-seven thousand, twenty".