265940 has 12 divisors (see below), whose sum is σ = 558516. Its totient is φ = 106368.

The previous prime is 265921. The next prime is 265957. The reversal of 265940 is 49562.

It can be written as a sum of positive squares in 2 ways, for example, as 31684 + 234256 = 178^2 + 484^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6629 + ... + 6668.

It is an arithmetic number, because the mean of its divisors is an integer number (46543).

2²⁶⁵⁹⁴⁰ is an apocalyptic number.

265940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

265940 is an abundant number, since it is smaller than the sum of its proper divisors (292576).

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

265940 is a wasteful number, since it uses less digits than its factorization.

265940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13306 (or 13304 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 265940 is about 515.6937075435. The cubic root of 265940 is about 64.3074400407.

The spelling of 265940 in words is "two hundred sixty-five thousand, nine hundred forty".