808400 has 60 divisors (see below), whose sum is σ = 2029632. Its totient is φ = 309120.

The previous prime is 808399. The next prime is 808417. The reversal of 808400 is 4808.

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

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17177 + ... + 17223.

2⁸⁰⁸⁴⁰⁰ is an apocalyptic number.

808400 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 808400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1014816).

808400 is an abundant number, since it is smaller than the sum of its proper divisors (1221232).

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

808400 is a wasteful number, since it uses less digits than its factorization.

808400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108 (or 97 counting only the distinct ones).

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

The square root of 808400 is about 899.1106717196. The cubic root of 808400 is about 93.1555572889.

The spelling of 808400 in words is "eight hundred eight thousand, four hundred".