6531040 has 24 divisors (see below), whose sum is σ = 15429960. Its totient is φ = 2612352.

The previous prime is 6531029. The next prime is 6531053. The reversal of 6531040 is 401356.

It is a junction number, because it is equal to n+sod(n) for n = 6530999 and 6531017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20250 + ... + 20569.

It is an arithmetic number, because the mean of its divisors is an integer number (642915).

Almost surely, 2^6531040 is an apocalyptic number.

It is an amenable number.

6531040 is an abundant number, since it is smaller than the sum of its proper divisors (8898920).

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

6531040 is a wasteful number, since it uses less digits than its factorization.

6531040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40834 (or 40826 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 6531040 is about 2555.5899514593. The cubic root of 6531040 is about 186.9221558235.

Adding to 6531040 its reverse (401356), we get a palindrome (6932396).

The spelling of 6531040 in words is "six million, five hundred thirty-one thousand, forty".