442270008820 has 24 divisors (see below), whose sum is σ = 928780561800. Its totient is φ = 176905423872.

The previous prime is 442270008781. The next prime is 442270008821. The reversal of 442270008820 is 28800072244.

It can be written as a sum of positive squares in 4 ways, for example, as 7991644816 + 434278364004 = 89396^2 + 658998^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 442270008820.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442270008821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1866816 + ... + 2090344.

It is an arithmetic number, because the mean of its divisors is an integer number (38699190075).

Almost surely, 2^442270008820 is an apocalyptic number.

It is an amenable number.

442270008820 is an abundant number, since it is smaller than the sum of its proper divisors (486510552980).

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

442270008820 is a wasteful number, since it uses less digits than its factorization.

442270008820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322467 (or 322465 counting only the distinct ones).

The product of its (nonzero) digits is 57344, while the sum is 37.

The spelling of 442270008820 in words is "four hundred forty-two billion, two hundred seventy million, eight thousand, eight hundred twenty".