396634560405 has 16 divisors (see below), whose sum is σ = 634690788480. Its totient is φ = 211513268288.

The previous prime is 396634560373. The next prime is 396634560431. The reversal of 396634560405 is 504065436693.

It is a cyclic number.

It is not a de Polignac number, because 396634560405 - 2⁵ = 396634560373 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1442097 + ... + 1694966.

It is an arithmetic number, because the mean of its divisors is an integer number (39668174280).

Almost surely, 2^396634560405 is an apocalyptic number.

It is an amenable number.

396634560405 is a deficient number, since it is larger than the sum of its proper divisors (238056228075).

396634560405 is a wasteful number, since it uses less digits than its factorization.

396634560405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3145500.

The product of its (nonzero) digits is 6998400, while the sum is 51.

The spelling of 396634560405 in words is "three hundred ninety-six billion, six hundred thirty-four million, five hundred sixty thousand, four hundred five".