634641284 has 12 divisors (see below), whose sum is σ = 1110966864. Its totient is φ = 317222184.

The previous prime is 634641281. The next prime is 634641311. The reversal of 634641284 is 482146436.

It is not an unprimeable number, because it can be changed into a prime (634641281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9014 + ... + 36749.

It is an arithmetic number, because the mean of its divisors is an integer number (92580572).

Almost surely, 2^634641284 is an apocalyptic number.

It is an amenable number.

634641284 is a deficient number, since it is larger than the sum of its proper divisors (476325580).

634641284 is a wasteful number, since it uses less digits than its factorization.

634641284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49234 (or 49232 counting only the distinct ones).

The product of its digits is 110592, while the sum is 38.

The square root of 634641284 is about 25192.0877261096. The cubic root of 634641284 is about 859.3619225849.

The spelling of 634641284 in words is "six hundred thirty-four million, six hundred forty-one thousand, two hundred eighty-four".