442340223 has 8 divisors (see below), whose sum is σ = 635155248. Its totient is φ = 272209344.

The previous prime is 442340191. The next prime is 442340237. The reversal of 442340223 is 322043244.

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

It is not a de Polignac number, because 442340223 - 2⁵ = 442340191 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 442340193 and 442340202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442344223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5670990 + ... + 5671067.

It is an arithmetic number, because the mean of its divisors is an integer number (79394406).

Almost surely, 2^442340223 is an apocalyptic number.

442340223 is a deficient number, since it is larger than the sum of its proper divisors (192815025).

442340223 is a wasteful number, since it uses less digits than its factorization.

442340223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11342073.

The product of its (nonzero) digits is 4608, while the sum is 24.

The square root of 442340223 is about 21031.8858640874. The cubic root of 442340223 is about 761.9365565355.

Adding to 442340223 its reverse (322043244), we get a palindrome (764383467).

The spelling of 442340223 in words is "four hundred forty-two million, three hundred forty thousand, two hundred twenty-three".