442223323 has 4 divisors (see below), whose sum is σ = 461450448. Its totient is φ = 422996200.

The previous prime is 442223321. The next prime is 442223359. The reversal of 442223323 is 323322244.

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 442223323 - 2¹ = 442223321 is a prime.

It is a super-2 number, since 2×442223323² = 391122934810324658, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442223321) 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, 9613528 + ... + 9613573.

It is an arithmetic number, because the mean of its divisors is an integer number (115362612).

Almost surely, 2^442223323 is an apocalyptic number.

442223323 is a deficient number, since it is larger than the sum of its proper divisors (19227125).

442223323 is a wasteful number, since it uses less digits than its factorization.

442223323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19227124.

The product of its digits is 6912, while the sum is 25.

The square root of 442223323 is about 21029.1065668516. The cubic root of 442223323 is about 761.8694300520.

Adding to 442223323 its reverse (323322244), we get a palindrome (765545567).

The spelling of 442223323 in words is "four hundred forty-two million, two hundred twenty-three thousand, three hundred twenty-three".