442520235220 has 24 divisors (see below), whose sum is σ = 1062048564864. Its totient is φ = 151721223456.

The previous prime is 442520235211. The next prime is 442520235233. The reversal of 442520235220 is 22532025244.

It is a super-3 number, since 3×442520235220³ (a number of 36 digits) contains 333 as substring.

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 7 ways as a sum of consecutive naturals, for example, 1580429272 + ... + 1580429551.

It is an arithmetic number, because the mean of its divisors is an integer number (44252023536).

Almost surely, 2^442520235220 is an apocalyptic number.

It is an amenable number.

442520235220 is an abundant number, since it is smaller than the sum of its proper divisors (619528329644).

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

442520235220 is a wasteful number, since it uses less digits than its factorization.

442520235220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3160858839 (or 3160858837 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 31.

The spelling of 442520235220 in words is "four hundred forty-two billion, five hundred twenty million, two hundred thirty-five thousand, two hundred twenty".