223442 has 4 divisors (see below), whose sum is σ = 335166. Its totient is φ = 111720.

The previous prime is 223441. The next prime is 223463. The reversal of 223442 is 244322.

223442 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.

It can be written as a sum of positive squares in only one way, i.e., 219961 + 3481 = 469^2 + 59^2 .

It is a nialpdrome in base 8.

It is a self number, because there is not a number n which added to its sum of digits gives 223442.

It is not an unprimeable number, because it can be changed into a prime (223441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55859 + ... + 55862.

2²²³⁴⁴² is an apocalyptic number.

223442 is a deficient number, since it is larger than the sum of its proper divisors (111724).

223442 is a wasteful number, since it uses less digits than its factorization.

223442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111723.

The product of its digits is 384, while the sum is 17.

The square root of 223442 is about 472.6965199787. The cubic root of 223442 is about 60.6813084385.

Adding to 223442 its reverse (244322), we get a palindrome (467764).

The spelling of 223442 in words is "two hundred twenty-three thousand, four hundred forty-two", and thus it is an iban number.