442939208 has 16 divisors (see below), whose sum is σ = 837862380. Its totient is φ = 219509248.

The previous prime is 442939193. The next prime is 442939241. The reversal of 442939208 is 802939244.

It can be written as a sum of positive squares in 2 ways, for example, as 409738564 + 33200644 = 20242^2 + 5762^2 .

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, 244085 + ... + 245892.

Almost surely, 2^442939208 is an apocalyptic number.

It is an amenable number.

442939208 is a deficient number, since it is larger than the sum of its proper divisors (394923172).

442939208 is a wasteful number, since it uses less digits than its factorization.

442939208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490096 (or 490092 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 442939208 is about 21046.1209727589. The cubic root of 442939208 is about 762.2803211286.

The spelling of 442939208 in words is "four hundred forty-two million, nine hundred thirty-nine thousand, two hundred eight".