265384 has 24 divisors (see below), whose sum is σ = 579690. Its totient is φ = 113568.

The previous prime is 265381. The next prime is 265399. The reversal of 265384 is 483562.

It can be written as a sum of positive squares in only one way, i.e., 142884 + 122500 = 378^2 + 350^2 .

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (265381) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 54 + ... + 730.

2²⁶⁵³⁸⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 265384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (289845).

265384 is an abundant number, since it is smaller than the sum of its proper divisors (314306).

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

265384 is a wasteful number, since it uses less digits than its factorization.

265384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 697 (or 686 counting only the distinct ones).

The product of its digits is 5760, while the sum is 28.

The square root of 265384 is about 515.1543458033. The cubic root of 265384 is about 64.2625929784.

Subtracting from 265384 its sum of digits (28), we obtain a triangular number (265356 = T₇₂₈).

The spelling of 265384 in words is "two hundred sixty-five thousand, three hundred eighty-four".