804120 has 32 divisors (see below), whose sum is σ = 2412720. Its totient is φ = 214400.

The previous prime is 804119. The next prime is 804127. The reversal of 804120 is 21408.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 804120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (804127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3231 + ... + 3470.

2⁸⁰⁴¹²⁰ is an apocalyptic number.

It is an amenable number.

804120 is an abundant number, since it is smaller than the sum of its proper divisors (1608600).

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

804120 is a wasteful number, since it uses less digits than its factorization.

804120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6715 (or 6711 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 804120 is about 896.7273833223. The cubic root of 804120 is about 92.9908650988.

Adding to 804120 its reverse (21408), we get a palindrome (825528).

The spelling of 804120 in words is "eight hundred four thousand, one hundred twenty".