2002354040405 has 8 divisors (see below), whose sum is σ = 2416100124984. Its totient is φ = 1593033048000.

The previous prime is 2002354040377. The next prime is 2002354040417. The reversal of 2002354040405 is 5040404532002.

It can be written as a sum of positive squares in 4 ways, for example, as 904385329 + 2001449655076 = 30073^2 + 1414726^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2002354040405 - 2⁶ = 2002354040341 is a prime.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 1106272046 + ... + 1106273855.

It is an arithmetic number, because the mean of its divisors is an integer number (302012515623).

Almost surely, 2^{2002354040405} is an apocalyptic number.

It is an amenable number.

2002354040405 is a deficient number, since it is larger than the sum of its proper divisors (413746084579).

2002354040405 is a wasteful number, since it uses less digits than its factorization.

2002354040405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2212546087.

The product of its (nonzero) digits is 19200, while the sum is 29.

Adding to 2002354040405 its reverse (5040404532002), we get a palindrome (7042758572407).

The spelling of 2002354040405 in words is "two trillion, two billion, three hundred fifty-four million, forty thousand, four hundred five".