442131020 has 48 divisors (see below), whose sum is σ = 939750336. Its totient is φ = 174720000.

The previous prime is 442131017. The next prime is 442131029. The reversal of 442131020 is 20131244.

It is a self number, because there is not a number n which added to its sum of digits gives 442131020.

It is not an unprimeable number, because it can be changed into a prime (442131029) 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 15 ways as a sum of consecutive naturals, for example, 848360 + ... + 848880.

It is an arithmetic number, because the mean of its divisors is an integer number (19578132).

Almost surely, 2^442131020 is an apocalyptic number.

It is an amenable number.

442131020 is an abundant number, since it is smaller than the sum of its proper divisors (497619316).

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

442131020 is a wasteful number, since it uses less digits than its factorization.

442131020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 962 (or 960 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 442131020 is about 21026.9118036862. The cubic root of 442131020 is about 761.8164193342.

Adding to 442131020 its reverse (20131244), we get a palindrome (462262264).

The spelling of 442131020 in words is "four hundred forty-two million, one hundred thirty-one thousand, twenty".