6138688 has 14 divisors (see below), whose sum is σ = 12181586. Its totient is φ = 3069312.

The previous prime is 6138673. The next prime is 6138689. The reversal of 6138688 is 8868316.

It can be written as a sum of positive squares in only one way, i.e., 5419584 + 719104 = 2328^2 + 848^2 .

It is a super-2 number, since 2×6138688² = 75366980722688, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6138688.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6138689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47895 + ... + 48022.

Almost surely, 2^6138688 is an apocalyptic number.

It is an amenable number.

6138688 is a deficient number, since it is larger than the sum of its proper divisors (6042898).

6138688 is an equidigital number, since it uses as much as digits as its factorization.

6138688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95929 (or 95919 counting only the distinct ones).

The product of its digits is 55296, while the sum is 40.

The square root of 6138688 is about 2477.6375844744. The cubic root of 6138688 is about 183.1014795435.

The spelling of 6138688 in words is "six million, one hundred thirty-eight thousand, six hundred eighty-eight".