223230020 has 24 divisors (see below), whose sum is σ = 504843864. Its totient is φ = 82423296.

The previous prime is 223230013. The next prime is 223230037. The reversal of 223230020 is 20032322.

It can be written as a sum of positive squares in 4 ways, for example, as 145924 + 223084096 = 382^2 + 14936^2 .

It is a super-3 number, since 3×223230020³ (a number of 26 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 223229977 and 223230004.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 429029 + ... + 429548.

It is an arithmetic number, because the mean of its divisors is an integer number (21035161).

Almost surely, 2^223230020 is an apocalyptic number.

223230020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223230020 is an abundant number, since it is smaller than the sum of its proper divisors (281613844).

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

223230020 is a wasteful number, since it uses less digits than its factorization.

223230020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 858599 (or 858597 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 223230020 is about 14940.8841773170. The cubic root of 223230020 is about 606.6211286244.

Adding to 223230020 its reverse (20032322), we get a palindrome (243262342).

The spelling of 223230020 in words is "two hundred twenty-three million, two hundred thirty thousand, twenty".