442608842 has 8 divisors (see below), whose sum is σ = 714983556. Its totient is φ = 204280992.

The previous prime is 442608841. The next prime is 442608851. The reversal of 442608842 is 248806244.

It can be written as a sum of positive squares in 2 ways, for example, as 440538121 + 2070721 = 20989^2 + 1439^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 442608796 and 442608805.

It is not an unprimeable number, because it can be changed into a prime (442608841) 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, 8511683 + ... + 8511734.

Almost surely, 2^442608842 is an apocalyptic number.

442608842 is a deficient number, since it is larger than the sum of its proper divisors (272374714).

442608842 is a wasteful number, since it uses less digits than its factorization.

442608842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17023432.

The product of its (nonzero) digits is 98304, while the sum is 38.

The square root of 442608842 is about 21038.2708890251. The cubic root of 442608842 is about 762.0907585194.

The spelling of 442608842 in words is "four hundred forty-two million, six hundred eight thousand, eight hundred forty-two".