808040 has 16 divisors (see below), whose sum is σ = 1818180. Its totient is φ = 323200.

The previous prime is 808039. The next prime is 808081. The reversal of 808040 is 40808.

It can be written as a sum of positive squares in 2 ways, for example, as 649636 + 158404 = 806^2 + 398^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10061 + ... + 10140.

2⁸⁰⁸⁰⁴⁰ is an apocalyptic number.

It is an amenable number.

808040 is an abundant number, since it is smaller than the sum of its proper divisors (1010140).

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

808040 is a wasteful number, since it uses less digits than its factorization.

808040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20212 (or 20208 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 808040 is about 898.9104516024. The cubic root of 808040 is about 93.1417270975.

Adding to 808040 its reverse (40808), we get a palindrome (848848).

The spelling of 808040 in words is "eight hundred eight thousand, forty".