40460656398 has 64 divisors (see below), whose sum is σ = 86407388928. Its totient is φ = 12611047680.

The previous prime is 40460656349. The next prime is 40460656441. The reversal of 40460656398 is 89365606404.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 40460656398.

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 31 ways as a sum of consecutive naturals, for example, 576661 + ... + 643007.

It is an arithmetic number, because the mean of its divisors is an integer number (1350115452).

Almost surely, 2^40460656398 is an apocalyptic number.

40460656398 is an abundant number, since it is smaller than the sum of its proper divisors (45946732530).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40460656398 is a wasteful number, since it uses less digits than its factorization.

40460656398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66497.

The product of its (nonzero) digits is 3732480, while the sum is 51.

The spelling of 40460656398 in words is "forty billion, four hundred sixty million, six hundred fifty-six thousand, three hundred ninety-eight".