442774872 has 48 divisors (see below), whose sum is σ = 1202469840. Its totient is φ = 147187008.

The previous prime is 442774859. The next prime is 442774873. The reversal of 442774872 is 278477244.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442774873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18613 + ... + 35099.

It is an arithmetic number, because the mean of its divisors is an integer number (25051455).

Almost surely, 2^442774872 is an apocalyptic number.

It is an amenable number.

442774872 is an abundant number, since it is smaller than the sum of its proper divisors (759694968).

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

442774872 is a wasteful number, since it uses less digits than its factorization.

442774872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16872 (or 16865 counting only the distinct ones).

The product of its digits is 702464, while the sum is 45.

The square root of 442774872 is about 21042.2164231813. The cubic root of 442774872 is about 762.1860376152.

The spelling of 442774872 in words is "four hundred forty-two million, seven hundred seventy-four thousand, eight hundred seventy-two".