6541240 has 32 divisors (see below), whose sum is σ = 15228000. Its totient is φ = 2525824.

The previous prime is 6541229. The next prime is 6541247. The reversal of 6541240 is 421456.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6541247) 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, 1660 + ... + 3979.

It is an arithmetic number, because the mean of its divisors is an integer number (475875).

Almost surely, 2^6541240 is an apocalyptic number.

It is an amenable number.

6541240 is an abundant number, since it is smaller than the sum of its proper divisors (8686760).

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

6541240 is a wasteful number, since it uses less digits than its factorization.

6541240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5679 (or 5675 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 6541240 is about 2557.5847982032. The cubic root of 6541240 is about 187.0194151822.

Adding to 6541240 its reverse (421456), we get a palindrome (6962696).

The spelling of 6541240 in words is "six million, five hundred forty-one thousand, two hundred forty".