634648260 has 48 divisors (see below), whose sum is σ = 1870545600. Its totient is φ = 160331904.

The previous prime is 634648181. The next prime is 634648271. The reversal of 634648260 is 62846436.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 277215 + ... + 279494.

It is an arithmetic number, because the mean of its divisors is an integer number (38969700).

Almost surely, 2^634648260 is an apocalyptic number.

634648260 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

634648260 is an abundant number, since it is smaller than the sum of its proper divisors (1235897340).

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

634648260 is a wasteful number, since it uses less digits than its factorization.

634648260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556740 (or 556738 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 39.

The square root of 634648260 is about 25192.2261818998. The cubic root of 634648260 is about 859.3650712858.

The spelling of 634648260 in words is "six hundred thirty-four million, six hundred forty-eight thousand, two hundred sixty".