265920 has 56 divisors (see below), whose sum is σ = 847344. Its totient is φ = 70656.

The previous prime is 265891. The next prime is 265921. The reversal of 265920 is 29562.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 265920.

It is not an unprimeable number, because it can be changed into a prime (265921) by changing a digit.

265920 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 in 7 ways as a sum of consecutive naturals, for example, 822 + ... + 1098.

2²⁶⁵⁹²⁰ is an apocalyptic number.

265920 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 265920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (423672).

265920 is an abundant number, since it is smaller than the sum of its proper divisors (581424).

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

265920 is a wasteful number, since it uses less digits than its factorization.

265920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297 (or 287 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 265920 is about 515.6743158235. The cubic root of 265920 is about 64.3058279214.

The spelling of 265920 in words is "two hundred sixty-five thousand, nine hundred twenty".