4138918 has 16 divisors (see below), whose sum is σ = 7126560. Its totient is φ = 1766016.

The previous prime is 4138877. The next prime is 4138933. The reversal of 4138918 is 8198314.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3598 + ... + 4606.

It is an arithmetic number, because the mean of its divisors is an integer number (445410).

Almost surely, 2^4138918 is an apocalyptic number.

4138918 is a deficient number, since it is larger than the sum of its proper divisors (2987642).

4138918 is a wasteful number, since it uses less digits than its factorization.

4138918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1311.

The product of its digits is 6912, while the sum is 34.

The square root of 4138918 is about 2034.4330905685. The cubic root of 4138918 is about 160.5568876025.

The spelling of 4138918 in words is "four million, one hundred thirty-eight thousand, nine hundred eighteen".