265440960 has 336 divisors, whose sum is σ = 975701376. Its totient is φ = 66134016.

The previous prime is 265440943. The next prime is 265440961. The reversal of 265440960 is 69044562.

265440960 is a `hidden beast` number, since 26 + 544 + 0 + 96 + 0 = 666.

265440960 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (265440961) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5008294 + ... + 5008346.

Almost surely, 2^265440960 is an apocalyptic number.

265440960 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 265440960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (487850688).

265440960 is an abundant number, since it is smaller than the sum of its proper divisors (710260416).

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

265440960 is a wasteful number, since it uses less digits than its factorization.

265440960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160 (or 147 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 265440960 is about 16292.3589452234. The cubic root of 265440960 is about 642.6719026067.

The spelling of 265440960 in words is "two hundred sixty-five million, four hundred forty thousand, nine hundred sixty".