808502140 has 12 divisors (see below), whose sum is σ = 1697854536. Its totient is φ = 323400848.

The previous prime is 808502111. The next prime is 808502143. The reversal of 808502140 is 41205808.

It is a junction number, because it is equal to n+sod(n) for n = 808502099 and 808502108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (808502143) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 20212534 + ... + 20212573.

It is an arithmetic number, because the mean of its divisors is an integer number (141487878).

Almost surely, 2^808502140 is an apocalyptic number.

It is an amenable number.

808502140 is an abundant number, since it is smaller than the sum of its proper divisors (889352396).

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

808502140 is a wasteful number, since it uses less digits than its factorization.

808502140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40425116 (or 40425114 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 28.

The square root of 808502140 is about 28434.1720470282. The cubic root of 808502140 is about 931.5948047373.

Adding to 808502140 its reverse (41205808), we get a palindrome (849707948).

The spelling of 808502140 in words is "eight hundred eight million, five hundred two thousand, one hundred forty".