265321240 has 16 divisors (see below), whose sum is σ = 596972880. Its totient is φ = 106128480.

The previous prime is 265321229. The next prime is 265321247. The reversal of 265321240 is 42123562.

265321240 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265321247) 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, 3316476 + ... + 3316555.

It is an arithmetic number, because the mean of its divisors is an integer number (37310805).

Almost surely, 2^265321240 is an apocalyptic number.

265321240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

265321240 is an abundant number, since it is smaller than the sum of its proper divisors (331651640).

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

265321240 is a wasteful number, since it uses less digits than its factorization.

265321240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6633042 (or 6633038 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 265321240 is about 16288.6844158759. The cubic root of 265321240 is about 642.5752681229.

It can be divided in two parts, 26532 and 1240, that added together give a palindrome (27772).

The spelling of 265321240 in words is "two hundred sixty-five million, three hundred twenty-one thousand, two hundred forty".