263042560 has 80 divisors (see below), whose sum is σ = 688094352. Its totient is φ = 95641600.

The previous prime is 263042519. The next prime is 263042561. The reversal of 263042560 is 65240362.

It is a happy number.

263042560 is digitally balanced in base 2, because in such base 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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (263042561) 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, 23490 + ... + 32830.

Almost surely, 2^263042560 is an apocalyptic number.

263042560 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 263042560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (344047176).

263042560 is an abundant number, since it is smaller than the sum of its proper divisors (425051792).

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

263042560 is an equidigital number, since it uses as much as digits as its factorization.

263042560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9375 (or 9359 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 263042560 is about 16218.5868681584. The cubic root of 263042560 is about 640.7304160772.

The spelling of 263042560 in words is "two hundred sixty-three million, forty-two thousand, five hundred sixty".