223221344 has 36 divisors (see below), whose sum is σ = 443846844. Its totient is φ = 110507904.

The previous prime is 223221307. The next prime is 223221353. The reversal of 223221344 is 443122322.

It is a super-3 number, since 3×223221344³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 788627 + ... + 788909.

It is an arithmetic number, because the mean of its divisors is an integer number (12329079).

Almost surely, 2^223221344 is an apocalyptic number.

It is an amenable number.

223221344 is a deficient number, since it is larger than the sum of its proper divisors (220625500).

223221344 is an equidigital number, since it uses as much as digits as its factorization.

223221344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607 (or 442 counting only the distinct ones).

The product of its digits is 2304, while the sum is 23.

The square root of 223221344 is about 14940.5938302331. The cubic root of 223221344 is about 606.6132695962.

Adding to 223221344 its reverse (443122322), we get a palindrome (666343666).

The spelling of 223221344 in words is "two hundred twenty-three million, two hundred twenty-one thousand, three hundred forty-four".