442380566628 has 144 divisors (see below), whose sum is σ = 1501412954496. Its totient is φ = 106065262080.

The previous prime is 442380566609. The next prime is 442380566653. The reversal of 442380566628 is 826665083244.

It is a happy number.

442380566628 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×442380566628² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6102001 + ... + 6174072.

Almost surely, 2^442380566628 is an apocalyptic number.

It is an amenable number.

442380566628 is an abundant number, since it is smaller than the sum of its proper divisors (1059032387868).

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

442380566628 is a wasteful number, since it uses less digits than its factorization.

442380566628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12276114 (or 12276109 counting only the distinct ones).

The product of its (nonzero) digits is 13271040, while the sum is 54.

The spelling of 442380566628 in words is "four hundred forty-two billion, three hundred eighty million, five hundred sixty-six thousand, six hundred twenty-eight".