442420302231 has 12 divisors (see below), whose sum is σ = 648589631352. Its totient is φ = 290544675696.

The previous prime is 442420302227. The next prime is 442420302241. The reversal of 442420302231 is 132203024244.

442420302231 is a `hidden beast` number, since 4 + 4 + 2 + 420 + 3 + 0 + 2 + 231 = 666.

It is not a de Polignac number, because 442420302231 - 2² = 442420302227 is a prime.

It is a super-2 number, since 2×442420302231² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 442420302195 and 442420302204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442420302211) 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 11 ways as a sum of consecutive naturals, for example, 366848736 + ... + 366849941.

It is an arithmetic number, because the mean of its divisors is an integer number (54049135946).

Almost surely, 2^442420302231 is an apocalyptic number.

442420302231 is a deficient number, since it is larger than the sum of its proper divisors (206169329121).

442420302231 is a wasteful number, since it uses less digits than its factorization.

442420302231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733698750 (or 733698747 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 442420302231 its reverse (132203024244), we get a palindrome (574623326475).

The spelling of 442420302231 in words is "four hundred forty-two billion, four hundred twenty million, three hundred two thousand, two hundred thirty-one".