6530406 has 16 divisors (see below), whose sum is σ = 13188864. Its totient is φ = 2155464.

The previous prime is 6530401. The next prime is 6530417. The reversal of 6530406 is 6040356.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6530401) 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, 4666 + ... + 5901.

It is an arithmetic number, because the mean of its divisors is an integer number (824304).

Almost surely, 2^6530406 is an apocalyptic number.

6530406 is an abundant number, since it is smaller than the sum of its proper divisors (6658458).

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

6530406 is a wasteful number, since it uses less digits than its factorization.

6530406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10675.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 6530406 is about 2555.4659066401. The cubic root of 6530406 is about 186.9161071451.

The spelling of 6530406 in words is "six million, five hundred thirty thousand, four hundred six".