804220 has 24 divisors (see below), whose sum is σ = 1713600. Its totient is φ = 316992.

The previous prime is 804211. The next prime is 804239. The reversal of 804220 is 22408.

804220 = T₁₁ + T₁₂ + ... + T₁₆₈.

804220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 804194 and 804203.

It is a congruent number.

It is an unprimeable number.

804220 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1326 + ... + 1834.

It is an arithmetic number, because the mean of its divisors is an integer number (71400).

2⁸⁰⁴²²⁰ is an apocalyptic number.

It is an amenable number.

804220 is an abundant number, since it is smaller than the sum of its proper divisors (909380).

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

804220 is a wasteful number, since it uses less digits than its factorization.

804220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 597 (or 595 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 804220 is about 896.7831398950. The cubic root of 804220 is about 92.9947197064.

Adding to 804220 its reverse (22408), we get a palindrome (826628).

It can be divided in two parts, 804 and 220, that added together give a 10-th power (1024 = 2¹⁰).

The spelling of 804220 in words is "eight hundred four thousand, two hundred twenty".