442823338 has 8 divisors (see below), whose sum is σ = 664710660. Its totient is φ = 221253120.

The previous prime is 442823317. The next prime is 442823351. The reversal of 442823338 is 833328244.

It can be written as a sum of positive squares in 2 ways, for example, as 436099689 + 6723649 = 20883^2 + 2593^2 .

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 = 442823297 and 442823306.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75753 + ... + 81388.

Almost surely, 2^442823338 is an apocalyptic number.

442823338 is a deficient number, since it is larger than the sum of its proper divisors (221887322).

442823338 is a wasteful number, since it uses less digits than its factorization.

442823338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158552.

The product of its digits is 110592, while the sum is 37.

The square root of 442823338 is about 21043.3680289064. The cubic root of 442823338 is about 762.2138461496.

The spelling of 442823338 in words is "four hundred forty-two million, eight hundred twenty-three thousand, three hundred thirty-eight".