223434321 has 32 divisors (see below), whose sum is σ = 336061440. Its totient is φ = 130872000.

The previous prime is 223434317. The next prime is 223434331. The reversal of 223434321 is 123434322.

It is not a de Polignac number, because 223434321 - 2² = 223434317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 223434291 and 223434300.

It is not an unprimeable number, because it can be changed into a prime (223434301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 142540 + ... + 144098.

It is an arithmetic number, because the mean of its divisors is an integer number (10501920).

Almost surely, 2^223434321 is an apocalyptic number.

It is an amenable number.

223434321 is a deficient number, since it is larger than the sum of its proper divisors (112627119).

223434321 is a wasteful number, since it uses less digits than its factorization.

223434321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1717.

The product of its digits is 3456, while the sum is 24.

The square root of 223434321 is about 14947.7195919645. The cubic root of 223434321 is about 606.8061328850.

Adding to 223434321 its reverse (123434322), we get a palindrome (346868643).

Subtracting from 223434321 its reverse (123434322), we obtain a palindrome (99999999).

It can be divided in two parts, 22 and 3434321, that added together give a palindrome (3434343).

The spelling of 223434321 in words is "two hundred twenty-three million, four hundred thirty-four thousand, three hundred twenty-one".