396240004005 has 16 divisors (see below), whose sum is σ = 638823582144. Its totient is φ = 209714810240.

The previous prime is 396240003997. The next prime is 396240004067. The reversal of 396240004005 is 500400042693.

It is not a de Polignac number, because 396240004005 - 2³ = 396240003997 is a prime.

It is a super-2 number, since 2×396240004005² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100822464 + ... + 100826393.

It is an arithmetic number, because the mean of its divisors is an integer number (39926473884).

Almost surely, 2^396240004005 is an apocalyptic number.

It is an amenable number.

396240004005 is a deficient number, since it is larger than the sum of its proper divisors (242583578139).

396240004005 is a wasteful number, since it uses less digits than its factorization.

396240004005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201648996.

The product of its (nonzero) digits is 25920, while the sum is 33.

Adding to 396240004005 its reverse (500400042693), we get a palindrome (896640046698).

The spelling of 396240004005 in words is "three hundred ninety-six billion, two hundred forty million, four thousand, five".