804380 has 24 divisors (see below), whose sum is σ = 1736448. Its totient is φ = 312768.

The previous prime is 804371. The next prime is 804383. The reversal of 804380 is 83408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (804383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197 + ... + 1283.

It is an arithmetic number, because the mean of its divisors is an integer number (72352).

2⁸⁰⁴³⁸⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 804380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (868224).

804380 is an abundant number, since it is smaller than the sum of its proper divisors (932068).

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

804380 is a wasteful number, since it uses less digits than its factorization.

804380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1133 (or 1131 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 804380 is about 896.8723432016. The cubic root of 804380 is about 93.0008864139. Note that the first 3 decimals are identical.

Subtracting from 804380 its sum of digits (23), we obtain a cube (804357 = 93³).

Adding to 804380 its reverse (83408), we get a palindrome (887788).

The spelling of 804380 in words is "eight hundred four thousand, three hundred eighty".