834040 has 32 divisors (see below), whose sum is σ = 1944000. Its totient is φ = 321664.

The previous prime is 834023. The next prime is 834059. The reversal of 834040 is 40438.

It is a junction number, because it is equal to n+sod(n) for n = 833999 and 834017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 801 + ... + 1519.

It is an arithmetic number, because the mean of its divisors is an integer number (60750).

2⁸³⁴⁰⁴⁰ 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 834040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (972000).

834040 is an abundant number, since it is smaller than the sum of its proper divisors (1109960).

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

834040 is a wasteful number, since it uses less digits than its factorization.

834040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 759 (or 755 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 834040 is about 913.2579044279. The cubic root of 834040 is about 94.1301953245.

Adding to 834040 its reverse (40438), we get a palindrome (874478).

The spelling of 834040 in words is "eight hundred thirty-four thousand, forty".