265860 has 72 divisors (see below), whose sum is σ = 926016. Its totient is φ = 60480.

The previous prime is 265847. The next prime is 265861. The reversal of 265860 is 68562.

265860 = T₇₁ + T₇₂ + ... + T₁₂₄.

265860 is a `hidden beast` number, since 2 + 658 + 6 + 0 = 666.

It is not an unprimeable number, because it can be changed into a prime (265861) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1155 + ... + 1365.

2²⁶⁵⁸⁶⁰ is an apocalyptic number.

265860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 265860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (463008).

265860 is an abundant number, since it is smaller than the sum of its proper divisors (660156).

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

265860 is a wasteful number, since it uses less digits than its factorization.

265860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233 (or 228 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 265860 is about 515.6161362875. The cubic root of 265860 is about 64.3009910783.

It can be divided in two parts, 26 and 5860, that added together give a triangular number (5886 = T₁₀₈).

The spelling of 265860 in words is "two hundred sixty-five thousand, eight hundred sixty".