6540234 has 32 divisors (see below), whose sum is σ = 13837824. Its totient is φ = 2056560.

The previous prime is 6540217. The next prime is 6540239. The reversal of 6540234 is 4320456.

It is not an unprimeable number, because it can be changed into a prime (6540239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11169 + ... + 11739.

It is an arithmetic number, because the mean of its divisors is an integer number (432432).

Almost surely, 2^6540234 is an apocalyptic number.

6540234 is an abundant number, since it is smaller than the sum of its proper divisors (7297590).

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

6540234 is a wasteful number, since it uses less digits than its factorization.

6540234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 6540234 is about 2557.3881207200. The cubic root of 6540234 is about 187.0098272357.

The spelling of 6540234 in words is "six million, five hundred forty thousand, two hundred thirty-four".