804136205240 has 32 divisors (see below), whose sum is σ = 1915736255280. Its totient is φ = 302733629952.

The previous prime is 804136205219. The next prime is 804136205263. The reversal of 804136205240 is 42502631408.

It is a self number, because there is not a number n which added to its sum of digits gives 804136205240.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 591275942 + ... + 591277301.

Almost surely, 2^804136205240 is an apocalyptic number.

It is an amenable number.

804136205240 is an abundant number, since it is smaller than the sum of its proper divisors (1111600050040).

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

804136205240 is a wasteful number, since it uses less digits than its factorization.

804136205240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1182553271 (or 1182553267 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 35.

Adding to 804136205240 its reverse (42502631408), we get a palindrome (846638836648).

The spelling of 804136205240 in words is "eight hundred four billion, one hundred thirty-six million, two hundred five thousand, two hundred forty".