263063968 has 48 divisors (see below), whose sum is σ = 552726720. Its totient is φ = 122881536.

The previous prime is 263063953. The next prime is 263063971. The reversal of 263063968 is 869360362.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41421 + ... + 47347.

It is an arithmetic number, because the mean of its divisors is an integer number (11515140).

Almost surely, 2^263063968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 263063968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (276363360).

263063968 is an abundant number, since it is smaller than the sum of its proper divisors (289662752).

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

263063968 is a wasteful number, since it uses less digits than its factorization.

263063968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6029 (or 6021 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 43.

The square root of 263063968 is about 16219.2468382475. The cubic root of 263063968 is about 640.7477977823.

The spelling of 263063968 in words is "two hundred sixty-three million, sixty-three thousand, nine hundred sixty-eight".