442857976 has 32 divisors (see below), whose sum is σ = 914659200. Its totient is φ = 199340640.

The previous prime is 442857937. The next prime is 442857977. The reversal of 442857976 is 679758244.

It is a super-2 number, since 2×442857976² = 392246373813633152, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442857977) 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, 15366 + ... + 33493.

It is an arithmetic number, because the mean of its divisors is an integer number (28583100).

Almost surely, 2^442857976 is an apocalyptic number.

It is an amenable number.

442857976 is an abundant number, since it is smaller than the sum of its proper divisors (471801224).

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

442857976 is a wasteful number, since it uses less digits than its factorization.

442857976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48979 (or 48975 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 52.

The square root of 442857976 is about 21044.1910274546. The cubic root of 442857976 is about 762.2337192928.

The spelling of 442857976 in words is "four hundred forty-two million, eight hundred fifty-seven thousand, nine hundred seventy-six".