263090768 has 20 divisors (see below), whose sum is σ = 522172308. Its totient is φ = 128336640.

The previous prime is 263090753. The next prime is 263090791. The reversal of 263090768 is 867090362.

It can be written as a sum of positive squares in 2 ways, for example, as 26915344 + 236175424 = 5188^2 + 15368^2 .

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

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, 199871 + ... + 201182.

Almost surely, 2^263090768 is an apocalyptic number.

It is an amenable number.

263090768 is a deficient number, since it is larger than the sum of its proper divisors (259081540).

263090768 is a wasteful number, since it uses less digits than its factorization.

263090768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401102 (or 401096 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 263090768 is about 16220.0729961366. The cubic root of 263090768 is about 640.7695560616.

The spelling of 263090768 in words is "two hundred sixty-three million, ninety thousand, seven hundred sixty-eight".