263073568 has 24 divisors (see below), whose sum is σ = 518315868. Its totient is φ = 131437824.

The previous prime is 263073553. The next prime is 263073581. The reversal of 263073568 is 865370362.

It can be written as a sum of positive squares in 2 ways, for example, as 258180624 + 4892944 = 16068^2 + 2212^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 263073568.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59730 + ... + 63982.

Almost surely, 2^263073568 is an apocalyptic number.

It is an amenable number.

263073568 is a deficient number, since it is larger than the sum of its proper divisors (255242300).

263073568 is a wasteful number, since it uses less digits than its factorization.

263073568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6196 (or 6188 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 40.

The square root of 263073568 is about 16219.5427802389. The cubic root of 263073568 is about 640.7555919627.

The spelling of 263073568 in words is "two hundred sixty-three million, seventy-three thousand, five hundred sixty-eight".