442420204238 has 16 divisors (see below), whose sum is σ = 665482929840. Its totient is φ = 220593364800.

The previous prime is 442420204231. The next prime is 442420204243. The reversal of 442420204238 is 832402024244.

It is a junction number, because it is equal to n+sod(n) for n = 442420204198 and 442420204207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442420204231) 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 7 ways as a sum of consecutive naturals, for example, 904808 + ... + 1305188.

It is an arithmetic number, because the mean of its divisors is an integer number (41592683115).

Almost surely, 2^442420204238 is an apocalyptic number.

442420204238 is a deficient number, since it is larger than the sum of its proper divisors (223062725602).

442420204238 is a wasteful number, since it uses less digits than its factorization.

442420204238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401923.

The product of its (nonzero) digits is 98304, while the sum is 35.

The spelling of 442420204238 in words is "four hundred forty-two billion, four hundred twenty million, two hundred four thousand, two hundred thirty-eight".