265265240 has 32 divisors (see below), whose sum is σ = 602138880. Its totient is φ = 105165312.

The previous prime is 265265207. The next prime is 265265243. The reversal of 265265240 is 42562562.

It is a junction number, because it is equal to n+sod(n) for n = 265265197 and 265265206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265265243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24824 + ... + 33863.

It is an arithmetic number, because the mean of its divisors is an integer number (18816840).

Almost surely, 2^265265240 is an apocalyptic number.

265265240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

265265240 is an abundant number, since it is smaller than the sum of its proper divisors (336873640).

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

265265240 is a wasteful number, since it uses less digits than its factorization.

265265240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58811 (or 58807 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 265265240 is about 16286.9653404187. The cubic root of 265265240 is about 642.5300565812.

The spelling of 265265240 in words is "two hundred sixty-five million, two hundred sixty-five thousand, two hundred forty".