40505031304 has 16 divisors (see below), whose sum is σ = 75949243920. Its totient is φ = 20251899600.

The previous prime is 40505031271. The next prime is 40505031311. The reversal of 40505031304 is 40313050504.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 327279 + ... + 433729.

It is an arithmetic number, because the mean of its divisors is an integer number (4746827745).

Almost surely, 2^40505031304 is an apocalyptic number.

It is an amenable number.

40505031304 is a deficient number, since it is larger than the sum of its proper divisors (35444212616).

40505031304 is a wasteful number, since it uses less digits than its factorization.

40505031304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154020 (or 154016 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

Adding to 40505031304 its reverse (40313050504), we get a palindrome (80818081808).

The spelling of 40505031304 in words is "forty billion, five hundred five million, thirty-one thousand, three hundred four".