6833440 has 24 divisors (see below), whose sum is σ = 16144380. Its totient is φ = 2733312.

The previous prime is 6833413. The next prime is 6833443. The reversal of 6833440 is 443386.

It can be written as a sum of positive squares in 2 ways, for example, as 6533136 + 300304 = 2556^2 + 548^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6833399 and 6833408.

It is not an unprimeable number, because it can be changed into a prime (6833443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21195 + ... + 21514.

Almost surely, 2^6833440 is an apocalyptic number.

It is an amenable number.

6833440 is an abundant number, since it is smaller than the sum of its proper divisors (9310940).

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

6833440 is a wasteful number, since it uses less digits than its factorization.

6833440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42724 (or 42716 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 6833440 is about 2614.0849259349. The cubic root of 6833440 is about 189.7636951469.

The spelling of 6833440 in words is "six million, eight hundred thirty-three thousand, four hundred forty".