6535040 has 32 divisors (see below), whose sum is σ = 15624360. Its totient is φ = 2613760.

The previous prime is 6535027. The next prime is 6535049. The reversal of 6535040 is 405356.

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 6534997 and 6535015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6535049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4466 + ... + 5745.

Almost surely, 2^6535040 is an apocalyptic number.

It is an amenable number.

6535040 is an abundant number, since it is smaller than the sum of its proper divisors (9089320).

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

6535040 is a wasteful number, since it uses less digits than its factorization.

6535040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10230 (or 10218 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 6535040 is about 2556.3724298310. The cubic root of 6535040 is about 186.9603088094.

The spelling of 6535040 in words is "six million, five hundred thirty-five thousand, forty".