223204144 has 30 divisors (see below), whose sum is σ = 452095196. Its totient is φ = 106745760.

The previous prime is 223204141. The next prime is 223204187. The reversal of 223204144 is 441402322.

It is a happy number.

223204144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×223204144³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (223204141) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4722 + ... + 21649.

Almost surely, 2^223204144 is an apocalyptic number.

It is an amenable number.

223204144 is an abundant number, since it is smaller than the sum of its proper divisors (228891052).

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

223204144 is a wasteful number, since it uses less digits than its factorization.

223204144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26425 (or 26396 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 223204144 is about 14940.0182061469. The cubic root of 223204144 is about 606.5976886246.

Adding to 223204144 its reverse (441402322), we get a palindrome (664606466).

The spelling of 223204144 in words is "two hundred twenty-three million, two hundred four thousand, one hundred forty-four".