263987448 has 16 divisors (see below), whose sum is σ = 659968680. Its totient is φ = 87995808.

The previous prime is 263987389. The next prime is 263987453. The reversal of 263987448 is 844789362.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 263987448.

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, 5499715 + ... + 5499762.

Almost surely, 2^263987448 is an apocalyptic number.

It is an amenable number.

263987448 is an abundant number, since it is smaller than the sum of its proper divisors (395981232).

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

263987448 is a wasteful number, since it uses less digits than its factorization.

263987448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10999486 (or 10999482 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 51.

The square root of 263987448 is about 16247.6905435819. The cubic root of 263987448 is about 641.4966989262.

The spelling of 263987448 in words is "two hundred sixty-three million, nine hundred eighty-seven thousand, four hundred forty-eight".