40405860994 has 16 divisors (see below), whose sum is σ = 60806592000. Its totient is φ = 20137043664.

The previous prime is 40405860977. The next prime is 40405861003. The reversal of 40405860994 is 49906850404.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1999489 + ... + 2019595.

It is an arithmetic number, because the mean of its divisors is an integer number (3800412000).

Almost surely, 2^40405860994 is an apocalyptic number.

40405860994 is a deficient number, since it is larger than the sum of its proper divisors (20400731006).

40405860994 is a wasteful number, since it uses less digits than its factorization.

40405860994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23337.

The product of its (nonzero) digits is 1244160, while the sum is 49.

The spelling of 40405860994 in words is "forty billion, four hundred five million, eight hundred sixty thousand, nine hundred ninety-four".