442323013 has 8 divisors (see below), whose sum is σ = 482690016. Its totient is φ = 401982000.

The previous prime is 442322999. The next prime is 442323029. The reversal of 442323013 is 310323244.

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 a de Polignac number, because none of the positive numbers 2^k-442323013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442323043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52170 + ... + 60052.

It is an arithmetic number, because the mean of its divisors is an integer number (60336252).

Almost surely, 2^442323013 is an apocalyptic number.

It is an amenable number.

442323013 is a deficient number, since it is larger than the sum of its proper divisors (40367003).

442323013 is a wasteful number, since it uses less digits than its factorization.

442323013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12995.

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

The square root of 442323013 is about 21031.4767194318. The cubic root of 442323013 is about 761.9266749274.

Adding to 442323013 its reverse (310323244), we get a palindrome (752646257).

The spelling of 442323013 in words is "four hundred forty-two million, three hundred twenty-three thousand, thirteen".