442871856 has 60 divisors (see below), whose sum is σ = 1416490192. Its totient is φ = 126534528.

The previous prime is 442871851. The next prime is 442871899. The reversal of 442871856 is 658178244.

It is a super-2 number, since 2×442871856² = 392270961673769472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442871851) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 218671 + ... + 220686.

Almost surely, 2^442871856 is an apocalyptic number.

It is an amenable number.

442871856 is an abundant number, since it is smaller than the sum of its proper divisors (973618336).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

442871856 is a wasteful number, since it uses less digits than its factorization.

442871856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439378 (or 439369 counting only the distinct ones).

The product of its digits is 430080, while the sum is 45.

The square root of 442871856 is about 21044.5208070890. The cubic root of 442871856 is about 762.2416824880.

The spelling of 442871856 in words is "four hundred forty-two million, eight hundred seventy-one thousand, eight hundred fifty-six".