263081104 has 60 divisors (see below), whose sum is σ = 603425788. Its totient is φ = 110373120.

The previous prime is 263081099. The next prime is 263081111. The reversal of 263081104 is 401180362.

263081104 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 165071104 + 98010000 = 12848^2 + 9900^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19942 + ... + 30394.

Almost surely, 2^263081104 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 263081104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (301712894).

263081104 is an abundant number, since it is smaller than the sum of its proper divisors (340344684).

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

263081104 is a wasteful number, since it uses less digits than its factorization.

263081104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10496 (or 10479 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 263081104 is about 16219.7750909191. The cubic root of 263081104 is about 640.7617102614.

The spelling of 263081104 in words is "two hundred sixty-three million, eighty-one thousand, one hundred four".