40805408894 has 16 divisors (see below), whose sum is σ = 61568488800. Its totient is φ = 20282755680.

The previous prime is 40805408887. The next prime is 40805408909. The reversal of 40805408894 is 49880450804.

40805408894 = 242² + 243² + ... + 4965².

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 426632 + ... + 513444.

It is an arithmetic number, because the mean of its divisors is an integer number (3848030550).

Almost surely, 2^40805408894 is an apocalyptic number.

40805408894 is a deficient number, since it is larger than the sum of its proper divisors (20763079906).

40805408894 is a wasteful number, since it uses less digits than its factorization.

40805408894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88195.

The product of its (nonzero) digits is 1474560, while the sum is 50.

The spelling of 40805408894 in words is "forty billion, eight hundred five million, four hundred eight thousand, eight hundred ninety-four".