442423230133 has 8 divisors (see below), whose sum is σ = 445206646080. Its totient is φ = 439641411840.

The previous prime is 442423230107. The next prime is 442423230167. The reversal of 442423230133 is 331032324244.

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 442423230133 - 2⁹ = 442423229621 is a prime.

It is a super-2 number, since 2×442423230133² (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 = 442423230095 and 442423230104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442423210133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158613 + ... + 953941.

It is an arithmetic number, because the mean of its divisors is an integer number (55650830760).

Almost surely, 2^442423230133 is an apocalyptic number.

It is an amenable number.

442423230133 is a deficient number, since it is larger than the sum of its proper divisors (2783415947).

442423230133 is a wasteful number, since it uses less digits than its factorization.

442423230133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 798827.

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

Adding to 442423230133 its reverse (331032324244), we get a palindrome (773455554377).

The spelling of 442423230133 in words is "four hundred forty-two billion, four hundred twenty-three million, two hundred thirty thousand, one hundred thirty-three".