442831980 has 96 divisors (see below), whose sum is σ = 1345014720. Its totient is φ = 108421120.

The previous prime is 442831973. The next prime is 442831999. The reversal of 442831980 is 89138244.

It is a super-2 number, since 2×442831980² = 392200325021440800, which contains 22 as substring.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 36526 + ... + 47114.

It is an arithmetic number, because the mean of its divisors is an integer number (14010570).

Almost surely, 2^442831980 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 442831980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (672507360).

442831980 is an abundant number, since it is smaller than the sum of its proper divisors (902182740).

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

442831980 is a wasteful number, since it uses less digits than its factorization.

442831980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10659 (or 10657 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 442831980 is about 21043.5733657571. The cubic root of 442831980 is about 762.2188044920.

The spelling of 442831980 in words is "four hundred forty-two million, eight hundred thirty-one thousand, nine hundred eighty".