6438126 has 16 divisors (see below), whose sum is σ = 12976128. Its totient is φ = 2129400.

The previous prime is 6438109. The next prime is 6438143. The reversal of 6438126 is 6218346.

It is an interprime number because it is at equal distance from previous prime (6438109) and next prime (6438143).

It is a plaindrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 6438093 and 6438102.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3310 + ... + 4881.

It is an arithmetic number, because the mean of its divisors is an integer number (811008).

Almost surely, 2^6438126 is an apocalyptic number.

6438126 is an abundant number, since it is smaller than the sum of its proper divisors (6538002).

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

6438126 is a wasteful number, since it uses less digits than its factorization.

6438126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8327.

The product of its digits is 6912, while the sum is 30.

The square root of 6438126 is about 2537.3462514998. The cubic root of 6438126 is about 186.0315011972.

The spelling of 6438126 in words is "six million, four hundred thirty-eight thousand, one hundred twenty-six".