442211323 has 4 divisors (see below), whose sum is σ = 448811560. Its totient is φ = 435611088.

The previous prime is 442211303. The next prime is 442211347. The reversal of 442211323 is 323112244.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 442211323 - 2⁵ = 442211291 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 442211294 and 442211303.

It is not an unprimeable number, because it can be changed into a prime (442211303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3300018 + ... + 3300151.

It is an arithmetic number, because the mean of its divisors is an integer number (112202890).

Almost surely, 2^442211323 is an apocalyptic number.

442211323 is a deficient number, since it is larger than the sum of its proper divisors (6600237).

442211323 is an equidigital number, since it uses as much as digits as its factorization.

442211323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6600236.

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

The square root of 442211323 is about 21028.8212460899. The cubic root of 442211323 is about 761.8625387255.

Adding to 442211323 its reverse (323112244), we get a palindrome (765323567).

The spelling of 442211323 in words is "four hundred forty-two million, two hundred eleven thousand, three hundred twenty-three".