6480138 has 32 divisors (see below), whose sum is σ = 14891904. Its totient is φ = 1841472.

The previous prime is 6480127. The next prime is 6480139. The reversal of 6480138 is 8310846.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (6480139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11356 + ... + 11912.

It is an arithmetic number, because the mean of its divisors is an integer number (465372).

Almost surely, 2^6480138 is an apocalyptic number.

6480138 is an abundant number, since it is smaller than the sum of its proper divisors (8411766).

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

6480138 is a wasteful number, since it uses less digits than its factorization.

6480138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 846.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 6480138 is about 2545.6115178872. The cubic root of 6480138 is about 186.4352737987.

The spelling of 6480138 in words is "six million, four hundred eighty thousand, one hundred thirty-eight".