442346872 has 64 divisors (see below), whose sum is σ = 922479840. Its totient is φ = 197184000.

The previous prime is 442346867. The next prime is 442346887. The reversal of 442346872 is 278643244.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1395258 + ... + 1395574.

Almost surely, 2^442346872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 442346872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (461239920).

442346872 is an abundant number, since it is smaller than the sum of its proper divisors (480132968).

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

442346872 is a wasteful number, since it uses less digits than its factorization.

442346872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 592 (or 588 counting only the distinct ones).

The product of its digits is 258048, while the sum is 40.

The square root of 442346872 is about 21032.0439330085. The cubic root of 442346872 is about 761.9403741782.

The spelling of 442346872 in words is "four hundred forty-two million, three hundred forty-six thousand, eight hundred seventy-two".