442288355816 has 32 divisors (see below), whose sum is σ = 833761269000. Its totient is φ = 219952496640.

The previous prime is 442288355813. The next prime is 442288355837. The reversal of 442288355816 is 618553882244.

It can be written as a sum of positive squares in 4 ways, for example, as 436458422500 + 5829933316 = 660650^2 + 76354^2 .

It is not an unprimeable number, because it can be changed into a prime (442288355813) 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, 8095760 + ... + 8150208.

Almost surely, 2^442288355816 is an apocalyptic number.

It is an amenable number.

442288355816 is a deficient number, since it is larger than the sum of its proper divisors (391472913184).

442288355816 is a wasteful number, since it uses less digits than its factorization.

442288355816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59909 (or 59905 counting only the distinct ones).

The product of its digits is 14745600, while the sum is 56.

The spelling of 442288355816 in words is "four hundred forty-two billion, two hundred eighty-eight million, three hundred fifty-five thousand, eight hundred sixteen".