442025036644 has 48 divisors (see below), whose sum is σ = 801872694000. Its totient is φ = 213032042496.

The previous prime is 442025036599. The next prime is 442025036671. The reversal of 442025036644 is 446630520244.

It can be written as a sum of positive squares in 8 ways, for example, as 6266622244 + 435758414400 = 79162^2 + 660120^2 .

It is a super-2 number, since 2×442025036644² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 442025036597 and 442025036606.

It is an unprimeable number.

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, 42624292 + ... + 42634660.

It is an arithmetic number, because the mean of its divisors is an integer number (16705681125).

Almost surely, 2^442025036644 is an apocalyptic number.

It is an amenable number.

442025036644 is a deficient number, since it is larger than the sum of its proper divisors (359847657356).

442025036644 is a wasteful number, since it uses less digits than its factorization.

442025036644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13072 (or 13070 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 40.

Adding to 442025036644 its reverse (446630520244), we get a palindrome (888655556888).

The spelling of 442025036644 in words is "four hundred forty-two billion, twenty-five million, thirty-six thousand, six hundred forty-four".