263705064 has 48 divisors (see below), whose sum is σ = 766900800. Its totient is φ = 75343968.

The previous prime is 263705063. The next prime is 263705077. The reversal of 263705064 is 460507362.

It is not an unprimeable number, because it can be changed into a prime (263705063) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 110944 + ... + 113295.

It is an arithmetic number, because the mean of its divisors is an integer number (15977100).

Almost surely, 2^263705064 is an apocalyptic number.

263705064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

263705064 is an abundant number, since it is smaller than the sum of its proper divisors (503195736).

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

263705064 is a wasteful number, since it uses less digits than its factorization.

263705064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224262 (or 224251 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 33.

The square root of 263705064 is about 16238.9982449657. The cubic root of 263705064 is about 641.2678837125.

The spelling of 263705064 in words is "two hundred sixty-three million, seven hundred five thousand, sixty-four".