265273728 has 32 divisors (see below), whose sum is σ = 704634360. Its totient is φ = 88424448.

The previous prime is 265273721. The next prime is 265273733. The reversal of 265273728 is 827372562.

265273728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (32).

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 265273728.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265273721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 345025 + ... + 345792.

Almost surely, 2^265273728 is an apocalyptic number.

It is an amenable number.

265273728 is an abundant number, since it is smaller than the sum of its proper divisors (439360632).

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

265273728 is an equidigital number, since it uses as much as digits as its factorization.

265273728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 690834 (or 690822 counting only the distinct ones).

The product of its digits is 282240, while the sum is 42.

The square root of 265273728 is about 16287.2259148082. The cubic root of 265273728 is about 642.5369097682.

The spelling of 265273728 in words is "two hundred sixty-five million, two hundred seventy-three thousand, seven hundred twenty-eight".