223538 has 12 divisors (see below), whose sum is σ = 390222. Its totient is φ = 95760.

The previous prime is 223529. The next prime is 223543. The reversal of 223538 is 835322.

223538 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 182329 + 41209 = 427^2 + 203^2 .

It is a nialpdrome in base 12.

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, 1043 + ... + 1238.

2²²³⁵³⁸ is an apocalyptic number.

223538 is a deficient number, since it is larger than the sum of its proper divisors (166684).

223538 is a wasteful number, since it uses less digits than its factorization.

223538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2297 (or 2290 counting only the distinct ones).

The product of its digits is 1440, while the sum is 23.

The square root of 223538 is about 472.7980541415. The cubic root of 223538 is about 60.6899976010.

The spelling of 223538 in words is "two hundred twenty-three thousand, five hundred thirty-eight".