4138769 has 6 divisors (see below), whose sum is σ = 4396854. Its totient is φ = 3895040.

The previous prime is 4138753. The next prime is 4138777. The reversal of 4138769 is 9678314.

It can be written as a sum of positive squares in 3 ways, for example, as 483025 + 3655744 = 695^2 + 1912^2 .

It is not a de Polignac number, because 4138769 - 2⁴ = 4138753 is a prime.

It is a super-2 number, since 2×4138769² = 34258817670722, which contains 22 as substring.

It is a Duffinian number.

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 5 ways as a sum of consecutive naturals, for example, 6872 + ... + 7449.

It is an arithmetic number, because the mean of its divisors is an integer number (732809).

Almost surely, 2^4138769 is an apocalyptic number.

It is an amenable number.

4138769 is a deficient number, since it is larger than the sum of its proper divisors (258085).

4138769 is a wasteful number, since it uses less digits than its factorization.

4138769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14355 (or 14338 counting only the distinct ones).

The product of its digits is 36288, while the sum is 38.

The square root of 4138769 is about 2034.3964707008. The cubic root of 4138769 is about 160.5549609103.

The spelling of 4138769 in words is "four million, one hundred thirty-eight thousand, seven hundred sixty-nine".