263830 has 16 divisors (see below), whose sum is σ = 542880. Its totient is φ = 90432.

The previous prime is 263827. The next prime is 263843. The reversal of 263830 is 38362.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1815 + ... + 1954.

It is an arithmetic number, because the mean of its divisors is an integer number (33930).

2²⁶³⁸³⁰ is an apocalyptic number.

263830 is an abundant number, since it is smaller than the sum of its proper divisors (279050).

It is a weird number, because it is abundant, but not a pseudoperfect number.

263830 is a wasteful number, since it uses less digits than its factorization.

263830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3783.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 263830 is about 513.6438454805. The cubic root of 263830 is about 64.1369139252.

The spelling of 263830 in words is "two hundred sixty-three thousand, eight hundred thirty".