442302323 has 4 divisors (see below), whose sum is σ = 442858080. Its totient is φ = 441746568.

The previous prime is 442302317. The next prime is 442302337. The reversal of 442302323 is 323203244.

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 442302323 - 2⁴ = 442302307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442302313) 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, 276683 + ... + 278276.

It is an arithmetic number, because the mean of its divisors is an integer number (110714520).

Almost surely, 2^442302323 is an apocalyptic number.

442302323 is a deficient number, since it is larger than the sum of its proper divisors (555757).

442302323 is an equidigital number, since it uses as much as digits as its factorization.

442302323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555756.

The product of its (nonzero) digits is 3456, while the sum is 23.

The square root of 442302323 is about 21030.9848319093. The cubic root of 442302323 is about 761.9147948395.

Adding to 442302323 its reverse (323203244), we get a palindrome (765505567).

The spelling of 442302323 in words is "four hundred forty-two million, three hundred two thousand, three hundred twenty-three".