834236820 has 120 divisors (see below), whose sum is σ = 2637679968. Its totient is φ = 220708800.

The previous prime is 834236807. The next prime is 834236827. The reversal of 834236820 is 28632438.

834236820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (834236827) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 210255 + ... + 214185.

Almost surely, 2^834236820 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 834236820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1318839984).

834236820 is an abundant number, since it is smaller than the sum of its proper divisors (1803443148).

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

834236820 is a wasteful number, since it uses less digits than its factorization.

834236820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4083 (or 4072 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The square root of 834236820 is about 28883.1580683276. The cubic root of 834236820 is about 941.3759914519.

The spelling of 834236820 in words is "eight hundred thirty-four million, two hundred thirty-six thousand, eight hundred twenty".