265936 has 20 divisors (see below), whose sum is σ = 562464. Its totient is φ = 120800.

The previous prime is 265921. The next prime is 265957. The reversal of 265936 is 639562.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 265898 and 265907.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 580 + ... + 931.

2²⁶⁵⁹³⁶ is an apocalyptic number.

It is an amenable number.

265936 is an abundant number, since it is smaller than the sum of its proper divisors (296528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

265936 is a wasteful number, since it uses less digits than its factorization.

265936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1530 (or 1524 counting only the distinct ones).

The product of its digits is 9720, while the sum is 31.

The square root of 265936 is about 515.6898292579. The cubic root of 265936 is about 64.3071176233.

The spelling of 265936 in words is "two hundred sixty-five thousand, nine hundred thirty-six".