834240 has 112 divisors (see below), whose sum is σ = 2926080. Its totient is φ = 199680.

The previous prime is 834221. The next prime is 834257. The reversal of 834240 is 42438.

It is a happy number.

It is an unprimeable number.

834240 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 15 ways as a sum of consecutive naturals, for example, 10521 + ... + 10599.

2⁸³⁴²⁴⁰ is an apocalyptic number.

834240 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 834240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1463040).

834240 is an abundant number, since it is smaller than the sum of its proper divisors (2091840).

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

834240 is a wasteful number, since it uses less digits than its factorization.

834240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110 (or 100 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 834240 is about 913.3673959585. The cubic root of 834240 is about 94.1377187584.

Adding to 834240 its reverse (42438), we get a palindrome (876678).

The spelling of 834240 in words is "eight hundred thirty-four thousand, two hundred forty".