634243152 has 20 divisors (see below), whose sum is σ = 1638461600. Its totient is φ = 211414368.

The previous prime is 634243111. The next prime is 634243153. The reversal of 634243152 is 251342436.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634243153) 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 3 ways as a sum of consecutive naturals, for example, 6606652 + ... + 6606747.

It is an arithmetic number, because the mean of its divisors is an integer number (81923080).

Almost surely, 2^634243152 is an apocalyptic number.

It is an amenable number.

634243152 is an abundant number, since it is smaller than the sum of its proper divisors (1004218448).

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

634243152 is a wasteful number, since it uses less digits than its factorization.

634243152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13213410 (or 13213404 counting only the distinct ones).

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

The square root of 634243152 is about 25184.1845609502. The cubic root of 634243152 is about 859.1821827015.

Adding to 634243152 its reverse (251342436), we get a palindrome (885585588).

It can be divided in two parts, 6342 and 43152, that added together give a palindrome (49494).

The spelling of 634243152 in words is "six hundred thirty-four million, two hundred forty-three thousand, one hundred fifty-two".