4138688 has 14 divisors (see below), whose sum is σ = 8212836. Its totient is φ = 2069312.

The previous prime is 4138681. The next prime is 4138691. The reversal of 4138688 is 8868314.

4138688 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×4138688² = 34257476722688, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4138681) 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, 32270 + ... + 32397.

Almost surely, 2^4138688 is an apocalyptic number.

It is an amenable number.

4138688 is a deficient number, since it is larger than the sum of its proper divisors (4074148).

4138688 is an equidigital number, since it uses as much as digits as its factorization.

4138688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64679 (or 64669 counting only the distinct ones).

The product of its digits is 36864, while the sum is 38.

The square root of 4138688 is about 2034.3765629794. The cubic root of 4138688 is about 160.5539134944.

The spelling of 4138688 in words is "four million, one hundred thirty-eight thousand, six hundred eighty-eight".