265280832 has 140 divisors (see below), whose sum is σ = 798284916. Its totient is φ = 87091200.

The previous prime is 265280819. The next prime is 265280837. The reversal of 265280832 is 238082562.

It can be written as a sum of positive squares in 2 ways, for example, as 193098816 + 72182016 = 13896^2 + 8496^2 .

It is a super-2 number, since 2×265280832² = 140747839653224448, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265280837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 378082 + ... + 378782.

Almost surely, 2^265280832 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 265280832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (399142458).

265280832 is an abundant number, since it is smaller than the sum of its proper divisors (533004084).

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

265280832 is an equidigital number, since it uses as much as digits as its factorization.

265280832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 798 (or 779 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 265280832 is about 16287.4439983688. The cubic root of 265280832 is about 642.5426454053.

The spelling of 265280832 in words is "two hundred sixty-five million, two hundred eighty thousand, eight hundred thirty-two".