6486138 has 24 divisors (see below), whose sum is σ = 14665248. Its totient is φ = 2067912.

The previous prime is 6486133. The next prime is 6486143. The reversal of 6486138 is 8316846.

It is a happy number.

6486138 is a `hidden beast` number, since 648 + 6 + 1 + 3 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (6486133) and next prime (6486143).

It is not an unprimeable number, because it can be changed into a prime (6486131) 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 11 ways as a sum of consecutive naturals, for example, 7420 + ... + 8247.

It is an arithmetic number, because the mean of its divisors is an integer number (611052).

Almost surely, 2^6486138 is an apocalyptic number.

6486138 is an abundant number, since it is smaller than the sum of its proper divisors (8179110).

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

6486138 is a wasteful number, since it uses less digits than its factorization.

6486138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15698 (or 15695 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 6486138 is about 2546.7897439718. The cubic root of 6486138 is about 186.4927965746.

It can be divided in two parts, 648 and 6138, that added together give a triangular number (6786 = T₁₁₆).

The spelling of 6486138 in words is "six million, four hundred eighty-six thousand, one hundred thirty-eight".