442327408840 has 32 divisors (see below), whose sum is σ = 995763699000. Its totient is φ = 176837269504.

The previous prime is 442327408823. The next prime is 442327408847. The reversal of 442327408840 is 48804723244.

It can be written as a sum of positive squares in 4 ways, for example, as 435386186244 + 6941222596 = 659838^2 + 83314^2 .

It is a super-2 number, since 2×442327408840² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (442327408847) 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, 2851435 + ... + 3002554.

Almost surely, 2^442327408840 is an apocalyptic number.

442327408840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

442327408840 is an abundant number, since it is smaller than the sum of its proper divisors (553436290160).

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

442327408840 is a wasteful number, since it uses less digits than its factorization.

442327408840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5855889 (or 5855885 counting only the distinct ones).

The product of its (nonzero) digits is 1376256, while the sum is 46.

The spelling of 442327408840 in words is "four hundred forty-two billion, three hundred twenty-seven million, four hundred eight thousand, eight hundred forty".