265263140 has 24 divisors (see below), whose sum is σ = 581273280. Its totient is φ = 101491808.

The previous prime is 265263139. The next prime is 265263151. The reversal of 265263140 is 41362562.

265263140 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 287870 + ... + 288789.

It is an arithmetic number, because the mean of its divisors is an integer number (24219720).

Almost surely, 2^265263140 is an apocalyptic number.

265263140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

265263140 is an abundant number, since it is smaller than the sum of its proper divisors (316010140).

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

265263140 is a wasteful number, since it uses less digits than its factorization.

265263140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576691 (or 576689 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 265263140 is about 16286.9008715593. The cubic root of 265263140 is about 642.5283610246.

The spelling of 265263140 in words is "two hundred sixty-five million, two hundred sixty-three thousand, one hundred forty".