6560440 has 16 divisors (see below), whose sum is σ = 14761080. Its totient is φ = 2624160.

The previous prime is 6560431. The next prime is 6560447. The reversal of 6560440 is 440656.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6560447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81966 + ... + 82045.

Almost surely, 2^6560440 is an apocalyptic number.

It is an amenable number.

6560440 is an abundant number, since it is smaller than the sum of its proper divisors (8200640).

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

6560440 is a wasteful number, since it uses less digits than its factorization.

6560440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164022 (or 164018 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 6560440 is about 2561.3355891019. The cubic root of 6560440 is about 187.2022176911.

The spelling of 6560440 in words is "six million, five hundred sixty thousand, four hundred forty".