223438 has 8 divisors (see below), whose sum is σ = 342432. Its totient is φ = 109296.

The previous prime is 223429. The next prime is 223439. The reversal of 223438 is 834322.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223439) by changing a digit.

223438 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1095 + ... + 1282.

It is an arithmetic number, because the mean of its divisors is an integer number (42804).

2²²³⁴³⁸ is an apocalyptic number.

223438 is a deficient number, since it is larger than the sum of its proper divisors (118994).

223438 is a wasteful number, since it uses less digits than its factorization.

223438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2426.

The product of its digits is 1152, while the sum is 22.

The square root of 223438 is about 472.6922889153. The cubic root of 223438 is about 60.6809463360.

The spelling of 223438 in words is "two hundred twenty-three thousand, four hundred thirty-eight".