2005420442524 has 12 divisors (see below), whose sum is σ = 3511157769000. Its totient is φ = 1002232508528.

The previous prime is 2005420442513. The next prime is 2005420442563. The reversal of 2005420442524 is 4252440245002.

It is a happy number.

It is a super-3 number, since 3×2005420442524³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 2005420442524.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 119418739 + ... + 119435530.

It is an arithmetic number, because the mean of its divisors is an integer number (292596480750).

Almost surely, 2^{2005420442524} is an apocalyptic number.

It is an amenable number.

2005420442524 is a deficient number, since it is larger than the sum of its proper divisors (1505737326476).

2005420442524 is a wasteful number, since it uses less digits than its factorization.

2005420442524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238856372 (or 238856370 counting only the distinct ones).

The product of its (nonzero) digits is 102400, while the sum is 34.

Adding to 2005420442524 its reverse (4252440245002), we get a palindrome (6257860687526).

The spelling of 2005420442524 in words is "two trillion, five billion, four hundred twenty million, four hundred forty-two thousand, five hundred twenty-four".