42002404401 has 16 divisors (see below), whose sum is σ = 57815590400. Its totient is φ = 27095592960.

The previous prime is 42002404393. The next prime is 42002404471. The reversal of 42002404401 is 10440420024.

It is not a de Polignac number, because 42002404401 - 2³ = 42002404393 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42002404471) 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 15 ways as a sum of consecutive naturals, for example, 1341675 + ... + 1372623.

It is an arithmetic number, because the mean of its divisors is an integer number (3613474400).

Almost surely, 2^42002404401 is an apocalyptic number.

It is an amenable number.

42002404401 is a deficient number, since it is larger than the sum of its proper divisors (15813185999).

42002404401 is a wasteful number, since it uses less digits than its factorization.

42002404401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45576.

The product of its (nonzero) digits is 1024, while the sum is 21.

Adding to 42002404401 its reverse (10440420024), we get a palindrome (52442824425).

The spelling of 42002404401 in words is "forty-two billion, two million, four hundred four thousand, four hundred one".