263684382 has 64 divisors (see below), whose sum is σ = 614283264. Its totient is φ = 74718720.

The previous prime is 263684341. The next prime is 263684387. The reversal of 263684382 is 283486362.

263684382 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263684387) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 60207 + ... + 64437.

It is an arithmetic number, because the mean of its divisors is an integer number (9598176).

Almost surely, 2^263684382 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 263684382, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (307141632).

263684382 is an abundant number, since it is smaller than the sum of its proper divisors (350598882).

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

263684382 is a wasteful number, since it uses less digits than its factorization.

263684382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4313.

The product of its digits is 331776, while the sum is 42.

The square root of 263684382 is about 16238.3614321150. The cubic root of 263684382 is about 641.2511187088.

The spelling of 263684382 in words is "two hundred sixty-three million, six hundred eighty-four thousand, three hundred eighty-two".