265546240 has 80 divisors (see below), whose sum is σ = 650529792. Its totient is φ = 103911424.

The previous prime is 265546219. The next prime is 265546241. The reversal of 265546240 is 42645562.

265546240 is digitally balanced in base 2 and base 3, because in such bases 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 (80).

It is a junction number, because it is equal to n+sod(n) for n = 265546196 and 265546205.

It is not an unprimeable number, because it can be changed into a prime (265546241) 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, 119217 + ... + 121423.

Almost surely, 2^265546240 is an apocalyptic number.

265546240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 265546240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (325264896).

265546240 is an abundant number, since it is smaller than the sum of its proper divisors (384983552).

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

265546240 is an equidigital number, since it uses as much as digits as its factorization.

265546240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2277 (or 2261 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 34.

The square root of 265546240 is about 16295.5895873700. The cubic root of 265546240 is about 642.7568575368.

The spelling of 265546240 in words is "two hundred sixty-five million, five hundred forty-six thousand, two hundred forty".