223444042 has 4 divisors (see below), whose sum is σ = 335166066. Its totient is φ = 111722020.

The previous prime is 223444031. The next prime is 223444049. The reversal of 223444042 is 240444322.

223444042 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 an emirpimes, since its reverse is a distinct semiprime: 240444322 = 2 ⋅120222161.

It can be written as a sum of positive squares in only one way, i.e., 157979761 + 65464281 = 12569^2 + 8091^2 .

It is a junction number, because it is equal to n+sod(n) for n = 223443998 and 223444016.

It is not an unprimeable number, because it can be changed into a prime (223444049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55861009 + ... + 55861012.

Almost surely, 2^223444042 is an apocalyptic number.

223444042 is a deficient number, since it is larger than the sum of its proper divisors (111722024).

223444042 is a wasteful number, since it uses less digits than its factorization.

223444042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111722023.

The product of its (nonzero) digits is 6144, while the sum is 25.

The square root of 223444042 is about 14948.0447550842. The cubic root of 223444042 is about 606.8149329011.

Adding to 223444042 its reverse (240444322), we get a palindrome (463888364).

The spelling of 223444042 in words is "two hundred twenty-three million, four hundred forty-four thousand, forty-two".