223538369 has 4 divisors (see below), whose sum is σ = 224128560. Its totient is φ = 222948180.

The previous prime is 223538323. The next prime is 223538377. The reversal of 223538369 is 963835322.

223538369 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 223538369 - 2²⁰ = 222489793 is a prime.

It is a super-2 number, since 2×223538369² = 99938804830360322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (223534369) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 294527 + ... + 295284.

It is an arithmetic number, because the mean of its divisors is an integer number (56032140).

Almost surely, 2^223538369 is an apocalyptic number.

It is an amenable number.

223538369 is a deficient number, since it is larger than the sum of its proper divisors (590191).

223538369 is an equidigital number, since it uses as much as digits as its factorization.

223538369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590190.

The product of its digits is 233280, while the sum is 41.

The square root of 223538369 is about 14951.1995839799. The cubic root of 223538369 is about 606.9003099513.

It can be divided in two parts, 2235 and 38369, that added together give a palindrome (40604).

The spelling of 223538369 in words is "two hundred twenty-three million, five hundred thirty-eight thousand, three hundred sixty-nine".