438269 has 4 divisors (see below), whose sum is σ = 471996. Its totient is φ = 404544.

The previous prime is 438259. The next prime is 438271. The reversal of 438269 is 962834.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 962834 = 2 ⋅481417.

It can be written as a sum of positive squares in 2 ways, for example, as 62500 + 375769 = 250^2 + 613^2 .

It is a cyclic number.

It is not a de Polignac number, because 438269 - 2⁴ = 438253 is a prime.

It is a super-2 number, since 2×438269² = 384159432722, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (438259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16844 + ... + 16869.

It is an arithmetic number, because the mean of its divisors is an integer number (117999).

2⁴³⁸²⁶⁹ is an apocalyptic number.

It is an amenable number.

438269 is a deficient number, since it is larger than the sum of its proper divisors (33727).

438269 is a wasteful number, since it uses less digits than its factorization.

438269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33726.

The product of its digits is 10368, while the sum is 32.

The square root of 438269 is about 662.0188819059. The cubic root of 438269 is about 75.9591770604.

It can be divided in two parts, 438 and 269, that added together give a palindrome (707).

The spelling of 438269 in words is "four hundred thirty-eight thousand, two hundred sixty-nine".