42005025044 has 12 divisors (see below), whose sum is σ = 73524183264. Its totient is φ = 20998115544.

The previous prime is 42005024993. The next prime is 42005025047. The reversal of 42005025044 is 44052050024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42005025047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1077704 + ... + 1115999.

It is an arithmetic number, because the mean of its divisors is an integer number (6127015272).

Almost surely, 2^42005025044 is an apocalyptic number.

It is an amenable number.

42005025044 is a deficient number, since it is larger than the sum of its proper divisors (31519158220).

42005025044 is a wasteful number, since it uses less digits than its factorization.

42005025044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2198494 (or 2198492 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 26.

Adding to 42005025044 its reverse (44052050024), we get a palindrome (86057075068).

The spelling of 42005025044 in words is "forty-two billion, five million, twenty-five thousand, forty-four".