263793828 has 48 divisors (see below), whose sum is σ = 658494144. Its totient is φ = 81899520.

The previous prime is 263793809. The next prime is 263793833. The reversal of 263793828 is 828397362.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13123 + ... + 26453.

It is an arithmetic number, because the mean of its divisors is an integer number (13718628).

Almost surely, 2^263793828 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 263793828, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (329247072).

263793828 is an abundant number, since it is smaller than the sum of its proper divisors (394700316).

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

263793828 is a wasteful number, since it uses less digits than its factorization.

263793828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13452 (or 13450 counting only the distinct ones).

The product of its digits is 870912, while the sum is 48.

The square root of 263793828 is about 16241.7310653760. The cubic root of 263793828 is about 641.3398266072.

The spelling of 263793828 in words is "two hundred sixty-three million, seven hundred ninety-three thousand, eight hundred twenty-eight".