6538040 has 32 divisors (see below), whose sum is σ = 14904000. Its totient is φ = 2580864.

The previous prime is 6538019. The next prime is 6538043. The reversal of 6538040 is 408356.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6538043) 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 7 ways as a sum of consecutive naturals, for example, 2126 + ... + 4194.

It is an arithmetic number, because the mean of its divisors is an integer number (465750).

Almost surely, 2^6538040 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 6538040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7452000).

6538040 is an abundant number, since it is smaller than the sum of its proper divisors (8365960).

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

6538040 is a wasteful number, since it uses less digits than its factorization.

6538040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2159 (or 2155 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 6538040 is about 2556.9591314685. The cubic root of 6538040 is about 186.9889133332.

The spelling of 6538040 in words is "six million, five hundred thirty-eight thousand, forty".