634641924 has 60 divisors (see below), whose sum is σ = 1727611984. Its totient is φ = 181318032.

The previous prime is 634641919. The next prime is 634641941. The reversal of 634641924 is 429146436.

634641924 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 17799 + ... + 39825.

Almost surely, 2^634641924 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 634641924, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (863805992).

634641924 is an abundant number, since it is smaller than the sum of its proper divisors (1092970060).

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

634641924 is a wasteful number, since it uses less digits than its factorization.

634641924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22062 (or 22039 counting only the distinct ones).

The product of its digits is 124416, while the sum is 39.

The square root of 634641924 is about 25192.1004285073. The cubic root of 634641924 is about 859.3622114575.

The spelling of 634641924 in words is "six hundred thirty-four million, six hundred forty-one thousand, nine hundred twenty-four".