442821473916 has 48 divisors (see below), whose sum is σ = 1112925475200. Its totient is φ = 136586302272.

The previous prime is 442821473911. The next prime is 442821473951. The reversal of 442821473916 is 619374128244.

It is a super-2 number, since 2×442821473916² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442821473911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22573911 + ... + 22593518.

It is an arithmetic number, because the mean of its divisors is an integer number (23185947400).

Almost surely, 2^442821473916 is an apocalyptic number.

It is an amenable number.

442821473916 is an abundant number, since it is smaller than the sum of its proper divisors (670104001284).

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

442821473916 is a wasteful number, since it uses less digits than its factorization.

442821473916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45167498 (or 45167496 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 51.

The spelling of 442821473916 in words is "four hundred forty-two billion, eight hundred twenty-one million, four hundred seventy-three thousand, nine hundred sixteen".