634245132 has 24 divisors (see below), whose sum is σ = 1481656176. Its totient is φ = 211164928.

The previous prime is 634245127. The next prime is 634245133. The reversal of 634245132 is 231542436.

It is a self number, because there is not a number n which added to its sum of digits gives 634245132.

It is not an unprimeable number, because it can be changed into a prime (634245133) by changing a digit.

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, 20553 + ... + 41120.

It is an arithmetic number, because the mean of its divisors is an integer number (61735674).

Almost surely, 2^634245132 is an apocalyptic number.

It is an amenable number.

634245132 is an abundant number, since it is smaller than the sum of its proper divisors (847411044).

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

634245132 is a wasteful number, since it uses less digits than its factorization.

634245132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62537 (or 62535 counting only the distinct ones).

The product of its digits is 17280, while the sum is 30.

The square root of 634245132 is about 25184.2238713048. The cubic root of 634245132 is about 859.1830767745.

Adding to 634245132 its reverse (231542436), we get a palindrome (865787568).

The spelling of 634245132 in words is "six hundred thirty-four million, two hundred forty-five thousand, one hundred thirty-two".