634133230 has 32 divisors (see below), whose sum is σ = 1198027584. Its totient is φ = 241207296.

The previous prime is 634133221. The next prime is 634133231. The reversal of 634133230 is 32331436.

It is a junction number, because it is equal to n+sod(n) for n = 634133195 and 634133204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634133231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31822 + ... + 47758.

It is an arithmetic number, because the mean of its divisors is an integer number (37438362).

Almost surely, 2^634133230 is an apocalyptic number.

634133230 is a deficient number, since it is larger than the sum of its proper divisors (563894354).

634133230 is a wasteful number, since it uses less digits than its factorization.

634133230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16140.

The product of its (nonzero) digits is 3888, while the sum is 25.

The square root of 634133230 is about 25182.0021046779. The cubic root of 634133230 is about 859.1325442833.

Adding to 634133230 its reverse (32331436), we get a palindrome (666464666).

The spelling of 634133230 in words is "six hundred thirty-four million, one hundred thirty-three thousand, two hundred thirty".