442436860388 has 6 divisors (see below), whose sum is σ = 774264505686. Its totient is φ = 221218430192.

The previous prime is 442436860363. The next prime is 442436860391. The reversal of 442436860388 is 883068634244.

It can be written as a sum of positive squares in only one way, i.e., 440075677924 + 2361182464 = 663382^2 + 48592^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55304607545 + ... + 55304607552.

It is an arithmetic number, because the mean of its divisors is an integer number (129044084281).

Almost surely, 2^442436860388 is an apocalyptic number.

It is an amenable number.

442436860388 is a deficient number, since it is larger than the sum of its proper divisors (331827645298).

442436860388 is a wasteful number, since it uses less digits than its factorization.

442436860388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110609215101 (or 110609215099 counting only the distinct ones).

The product of its (nonzero) digits is 21233664, while the sum is 56.

The spelling of 442436860388 in words is "four hundred forty-two billion, four hundred thirty-six million, eight hundred sixty thousand, three hundred eighty-eight".