634807368 has 128 divisors (see below), whose sum is σ = 1923129600. Its totient is φ = 195255360.

The previous prime is 634807351. The next prime is 634807391. The reversal of 634807368 is 863708436.

634807368 is a `hidden beast` number, since 634 + 8 + 0 + 7 + 3 + 6 + 8 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 226053 + ... + 228843.

It is an arithmetic number, because the mean of its divisors is an integer number (15024450).

Almost surely, 2^634807368 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 634807368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (961564800).

634807368 is an abundant number, since it is smaller than the sum of its proper divisors (1288322232).

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

634807368 is a wasteful number, since it uses less digits than its factorization.

634807368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2831 (or 2809 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The square root of 634807368 is about 25195.3838629222. The cubic root of 634807368 is about 859.4368803186.

The spelling of 634807368 in words is "six hundred thirty-four million, eight hundred seven thousand, three hundred sixty-eight".