442130323 has 8 divisors (see below), whose sum is σ = 466041600. Its totient is φ = 418283208.

The previous prime is 442130309. The next prime is 442130327. The reversal of 442130323 is 323031244.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 442130323 - 2⁵ = 442130291 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 442130294 and 442130303.

It is not an unprimeable number, because it can be changed into a prime (442130327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1543 + ... + 29776.

It is an arithmetic number, because the mean of its divisors is an integer number (58255200).

Almost surely, 2^442130323 is an apocalyptic number.

442130323 is a deficient number, since it is larger than the sum of its proper divisors (23911277).

442130323 is a wasteful number, since it uses less digits than its factorization.

442130323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32081.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 442130323 is about 21026.8952296814. The cubic root of 442130323 is about 761.8160190107.

Adding to 442130323 its reverse (323031244), we get a palindrome (765161567).

The spelling of 442130323 in words is "four hundred forty-two million, one hundred thirty thousand, three hundred twenty-three".