828220 has 12 divisors (see below), whose sum is σ = 1739304. Its totient is φ = 331280.

The previous prime is 828209. The next prime is 828221. The reversal of 828220 is 22828.

828220 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 = 828191 and 828200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (828221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20686 + ... + 20725.

It is an arithmetic number, because the mean of its divisors is an integer number (144942).

2⁸²⁸²²⁰ is an apocalyptic number.

It is an amenable number.

828220 is an abundant number, since it is smaller than the sum of its proper divisors (911084).

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

828220 is a wasteful number, since it uses less digits than its factorization.

828220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41420 (or 41418 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

The square root of 828220 is about 910.0659316775. The cubic root of 828220 is about 93.9107346329.

The spelling of 828220 in words is "eight hundred twenty-eight thousand, two hundred twenty".