833840 has 40 divisors (see below), whose sum is σ = 2217120. Its totient is φ = 285696.

The previous prime is 833839. The next prime is 833843. The reversal of 833840 is 48338.

It is a tau number, because it is divible by the number of its divisors (40).

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (833843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185 + ... + 1304.

It is an arithmetic number, because the mean of its divisors is an integer number (55428).

2⁸³³⁸⁴⁰ is an apocalyptic number.

833840 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 833840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1108560).

833840 is an abundant number, since it is smaller than the sum of its proper divisors (1383280).

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

833840 is a wasteful number, since it uses less digits than its factorization.

833840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1509 (or 1503 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 833840 is about 913.1483997686. The cubic root of 833840 is about 94.1226706877.

The spelling of 833840 in words is "eight hundred thirty-three thousand, eight hundred forty".