263244 has 12 divisors (see below), whose sum is σ = 614264. Its totient is φ = 87744.

The previous prime is 263239. The next prime is 263257. The reversal of 263244 is 442362.

It is a tau number, because it is divible by the number of its divisors (12).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 263244.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 263244.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10957 + ... + 10980.

2²⁶³²⁴⁴ is an apocalyptic number.

It is an amenable number.

263244 is an abundant number, since it is smaller than the sum of its proper divisors (351020).

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

263244 is a wasteful number, since it uses less digits than its factorization.

263244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21944 (or 21942 counting only the distinct ones).

The product of its digits is 1152, while the sum is 21.

The square root of 263244 is about 513.0730942078. The cubic root of 263244 is about 64.0893933091.

The spelling of 263244 in words is "two hundred sixty-three thousand, two hundred forty-four".