634533130 has 32 divisors (see below), whose sum is σ = 1423992960. Its totient is φ = 197776320.

The previous prime is 634533059. The next prime is 634533149. The reversal of 634533130 is 31335436.

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 15 ways as a sum of consecutive naturals, for example, 411265 + ... + 412804.

It is an arithmetic number, because the mean of its divisors is an integer number (44499780).

Almost surely, 2^634533130 is an apocalyptic number.

634533130 is an abundant number, since it is smaller than the sum of its proper divisors (789459830).

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

634533130 is a wasteful number, since it uses less digits than its factorization.

634533130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 824094.

The product of its (nonzero) digits is 9720, while the sum is 28.

The square root of 634533130 is about 25189.9410479660. The cubic root of 634533130 is about 859.3131030329.

Adding to 634533130 its reverse (31335436), we get a palindrome (665868566).

It can be divided in two parts, 6345331 and 30, that added together give a square (6345361 = 2519²).

The spelling of 634533130 in words is "six hundred thirty-four million, five hundred thirty-three thousand, one hundred thirty".