442144032052 has 6 divisors (see below), whose sum is σ = 773752056098. Its totient is φ = 221072016024.

The previous prime is 442144032047. The next prime is 442144032053. The reversal of 442144032052 is 250230441244.

It can be written as a sum of positive squares in only one way, i.e., 441568224036 + 575808016 = 664506^2 + 23996^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442144032053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55268004003 + ... + 55268004010.

Almost surely, 2^442144032052 is an apocalyptic number.

It is an amenable number.

442144032052 is a deficient number, since it is larger than the sum of its proper divisors (331608024046).

442144032052 is a wasteful number, since it uses less digits than its factorization.

442144032052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110536008017 (or 110536008015 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 31.

Adding to 442144032052 its reverse (250230441244), we get a palindrome (692374473296).

The spelling of 442144032052 in words is "four hundred forty-two billion, one hundred forty-four million, thirty-two thousand, fifty-two".