634132144 has 40 divisors (see below), whose sum is σ = 1299086000. Its totient is φ = 299033856.

The previous prime is 634132133. The next prime is 634132193. The reversal of 634132144 is 441231436.

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 7 ways as a sum of consecutive naturals, for example, 65062 + ... + 74170.

It is an arithmetic number, because the mean of its divisors is an integer number (32477150).

Almost surely, 2^634132144 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 634132144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (649543000).

634132144 is an abundant number, since it is smaller than the sum of its proper divisors (664953856).

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

634132144 is a wasteful number, since it uses less digits than its factorization.

634132144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9365 (or 9359 counting only the distinct ones).

The product of its digits is 6912, while the sum is 28.

The square root of 634132144 is about 25181.9805416492. The cubic root of 634132144 is about 859.1320538404.

The spelling of 634132144 in words is "six hundred thirty-four million, one hundred thirty-two thousand, one hundred forty-four".