223408 has 10 divisors (see below), whose sum is σ = 432884. Its totient is φ = 111696.

The previous prime is 223403. The next prime is 223423. The reversal of 223408 is 804322.

It is a happy number.

It is a super-2 number, since 2×223408² = 99822268928, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (223403) by changing a digit.

223408 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 as a sum of consecutive naturals, namely, 6966 + ... + 6997.

2²²³⁴⁰⁸ is an apocalyptic number.

It is an amenable number.

223408 is a deficient number, since it is larger than the sum of its proper divisors (209476).

223408 is a wasteful number, since it uses less digits than its factorization.

223408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13971 (or 13965 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 223408 is about 472.6605547325. The cubic root of 223408 is about 60.6782304300.

The spelling of 223408 in words is "two hundred twenty-three thousand, four hundred eight".