633641132 has 12 divisors (see below), whose sum is σ = 1138841760. Its totient is φ = 308257776.

The previous prime is 633641131. The next prime is 633641143. The reversal of 633641132 is 231146336.

It is a junction number, because it is equal to n+sod(n) for n = 633641095 and 633641104.

It is not an unprimeable number, because it can be changed into a prime (633641131) 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, 2140532 + ... + 2140827.

It is an arithmetic number, because the mean of its divisors is an integer number (94903480).

Almost surely, 2^633641132 is an apocalyptic number.

It is an amenable number.

633641132 is a deficient number, since it is larger than the sum of its proper divisors (505200628).

633641132 is a wasteful number, since it uses less digits than its factorization.

633641132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4281400 (or 4281398 counting only the distinct ones).

The product of its digits is 7776, while the sum is 29.

The square root of 633641132 is about 25172.2293808077. The cubic root of 633641132 is about 858.9102530283.

Adding to 633641132 its reverse (231146336), we get a palindrome (864787468).

The spelling of 633641132 in words is "six hundred thirty-three million, six hundred forty-one thousand, one hundred thirty-two".