263310240 has 96 divisors (see below), whose sum is σ = 832035456. Its totient is φ = 69995520.

The previous prime is 263310211. The next prime is 263310259. The reversal of 263310240 is 42013362.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 201429 + ... + 202731.

It is an arithmetic number, because the mean of its divisors is an integer number (8667036).

Almost surely, 2^263310240 is an apocalyptic number.

263310240 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 263310240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (416017728).

263310240 is an abundant number, since it is smaller than the sum of its proper divisors (568725216).

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

263310240 is a wasteful number, since it uses less digits than its factorization.

263310240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1742 (or 1734 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 263310240 is about 16226.8370300561. The cubic root of 263310240 is about 640.9476845584.

The spelling of 263310240 in words is "two hundred sixty-three million, three hundred ten thousand, two hundred forty".