4138269 has 4 divisors (see below), whose sum is σ = 5517696. Its totient is φ = 2758844.

The previous prime is 4138261. The next prime is 4138279. The reversal of 4138269 is 9628314.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4138269 - 2³ = 4138261 is a prime.

It is a super-2 number, since 2×4138269² = 34250540632722, which contains 22 as substring.

It is a D-number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4138261) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 689709 + ... + 689714.

It is an arithmetic number, because the mean of its divisors is an integer number (1379424).

Almost surely, 2^4138269 is an apocalyptic number.

It is an amenable number.

4138269 is a deficient number, since it is larger than the sum of its proper divisors (1379427).

4138269 is a wasteful number, since it uses less digits than its factorization.

4138269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1379426.

The product of its digits is 10368, while the sum is 33.

The square root of 4138269 is about 2034.2735804213. The cubic root of 4138269 is about 160.5484951622.

The spelling of 4138269 in words is "four million, one hundred thirty-eight thousand, two hundred sixty-nine".