265436 has 6 divisors (see below), whose sum is σ = 464520. Its totient is φ = 132716.

The previous prime is 265427. The next prime is 265451. The reversal of 265436 is 634562.

It is a d-powerful number, because it can be written as 2⁷ + 6 + 4⁹ + 5⁵ + 3³ + 6 .

It is a zygodrome in base 3.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 265436.

It is an unprimeable number.

265436 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33176 + ... + 33183.

It is an arithmetic number, because the mean of its divisors is an integer number (77420).

2²⁶⁵⁴³⁶ is an apocalyptic number.

It is an amenable number.

265436 is a deficient number, since it is larger than the sum of its proper divisors (199084).

265436 is a wasteful number, since it uses less digits than its factorization.

265436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66363 (or 66361 counting only the distinct ones).

The product of its digits is 4320, while the sum is 26.

The square root of 265436 is about 515.2048136421. The cubic root of 265436 is about 64.2667899617.

Adding to 265436 its reverse (634562), we get a palindrome (899998).

The spelling of 265436 in words is "two hundred sixty-five thousand, four hundred thirty-six".