4138365 has 32 divisors (see below), whose sum is σ = 8257536. Its totient is φ = 1719360.

The previous prime is 4138349. The next prime is 4138369. The reversal of 4138365 is 5638314.

It is not a de Polignac number, because 4138365 - 2⁴ = 4138349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4138369) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 637 + ... + 2946.

It is an arithmetic number, because the mean of its divisors is an integer number (258048).

Almost surely, 2^4138365 is an apocalyptic number.

It is an amenable number.

4138365 is a deficient number, since it is larger than the sum of its proper divisors (4119171).

4138365 is a wasteful number, since it uses less digits than its factorization.

4138365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3609.

The product of its digits is 8640, while the sum is 30.

The square root of 4138365 is about 2034.2971759308. The cubic root of 4138365 is about 160.5497366262.

It can be divided in two parts, 413 and 8365, that added together give a palindrome (8778).

The spelling of 4138365 in words is "four million, one hundred thirty-eight thousand, three hundred sixty-five".