634641282 has 72 divisors (see below), whose sum is σ = 1533712752. Its totient is φ = 188094000.

The previous prime is 634641281. The next prime is 634641311. The reversal of 634641282 is 282146436.

634641282 is a `hidden beast` number, since 6 + 3 + 4 + 641 + 2 + 8 + 2 = 666.

It is a super-3 number, since 3×634641282³ (a number of 27 digits) contains 333 as substring.

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 35 ways as a sum of consecutive naturals, for example, 436657 + ... + 438107.

It is an arithmetic number, because the mean of its divisors is an integer number (21301566).

Almost surely, 2^634641282 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 634641282, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (766856376).

634641282 is an abundant number, since it is smaller than the sum of its proper divisors (899071470).

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

634641282 is a wasteful number, since it uses less digits than its factorization.

634641282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1564 (or 1514 counting only the distinct ones).

The product of its digits is 55296, while the sum is 36.

The square root of 634641282 is about 25192.0876864146. The cubic root of 634641282 is about 859.3619216822.

It can be divided in two parts, 63464 and 1282, that added together give a palindrome (64746).

The spelling of 634641282 in words is "six hundred thirty-four million, six hundred forty-one thousand, two hundred eighty-two".