808440 has 32 divisors (see below), whose sum is σ = 2425680. Its totient is φ = 215552.

The previous prime is 808439. The next prime is 808441. The reversal of 808440 is 44808.

It is an interprime number because it is at equal distance from previous prime (808439) and next prime (808441).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 808440.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 808440.

It is not an unprimeable number, because it can be changed into a prime (808441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3249 + ... + 3488.

2⁸⁰⁸⁴⁴⁰ is an apocalyptic number.

It is an amenable number.

808440 is an abundant number, since it is smaller than the sum of its proper divisors (1617240).

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

808440 is a wasteful number, since it uses less digits than its factorization.

808440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6751 (or 6747 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

The square root of 808440 is about 899.1329156471. The cubic root of 808440 is about 93.1570937233.

The spelling of 808440 in words is "eight hundred eight thousand, four hundred forty".