442323410233 has 4 divisors (see below), whose sum is σ = 442336148560. Its totient is φ = 442310671908.

The previous prime is 442323410203. The next prime is 442323410279. The reversal of 442323410233 is 332014323244.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-442323410233 is a prime.

It is a super-2 number, since 2×442323410233² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 442323410195 and 442323410204.

It is not an unprimeable number, because it can be changed into a prime (442323410203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6316935 + ... + 6386572.

It is an arithmetic number, because the mean of its divisors is an integer number (110584037140).

Almost surely, 2^442323410233 is an apocalyptic number.

It is an amenable number.

442323410233 is a deficient number, since it is larger than the sum of its proper divisors (12738327).

442323410233 is a wasteful number, since it uses less digits than its factorization.

442323410233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12738326.

The product of its (nonzero) digits is 41472, while the sum is 31.

Adding to 442323410233 its reverse (332014323244), we get a palindrome (774337733477).

The spelling of 442323410233 in words is "four hundred forty-two billion, three hundred twenty-three million, four hundred ten thousand, two hundred thirty-three".