834020 has 48 divisors (see below), whose sum is σ = 2032128. Its totient is φ = 284160.

The previous prime is 834013. The next prime is 834023. The reversal of 834020 is 20438.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 834020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (834023) by changing a digit.

834020 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3629 + ... + 3851.

It is an arithmetic number, because the mean of its divisors is an integer number (42336).

2⁸³⁴⁰²⁰ 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 834020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1016064).

834020 is an abundant number, since it is smaller than the sum of its proper divisors (1198108).

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

834020 is a wasteful number, since it uses less digits than its factorization.

834020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260 (or 258 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 834020 is about 913.2469545528. The cubic root of 834020 is about 94.1294429149.

Adding to 834020 its reverse (20438), we get a palindrome (854458).

The spelling of 834020 in words is "eight hundred thirty-four thousand, twenty".