634605312 has 108 divisors (see below), whose sum is σ = 1856749160. Its totient is φ = 192276480.

The previous prime is 634605287. The next prime is 634605319. The reversal of 634605312 is 213506436.

It is a self number, because there is not a number n which added to its sum of digits gives 634605312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634605319) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 89514 + ... + 96342.

Almost surely, 2^634605312 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 634605312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (928374580).

634605312 is an abundant number, since it is smaller than the sum of its proper divisors (1222143848).

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

634605312 is a wasteful number, since it uses less digits than its factorization.

634605312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6870 (or 6845 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 634605312 is about 25191.3737616669. The cubic root of 634605312 is about 859.3456858267.

The spelling of 634605312 in words is "six hundred thirty-four million, six hundred five thousand, three hundred twelve".