630489568 has 24 divisors (see below), whose sum is σ = 1244170368. Its totient is φ = 314509824.

The previous prime is 630489553. The next prime is 630489569. The reversal of 630489568 is 865984036.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630489569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8896 + ... + 36607.

It is an arithmetic number, because the mean of its divisors is an integer number (51840432).

Almost surely, 2^630489568 is an apocalyptic number.

It is an amenable number.

630489568 is a deficient number, since it is larger than the sum of its proper divisors (613680800).

630489568 is a wasteful number, since it uses less digits than its factorization.

630489568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45946 (or 45938 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 49.

The square root of 630489568 is about 25109.5513301214. The cubic root of 630489568 is about 857.4838878731.

The spelling of 630489568 in words is "six hundred thirty million, four hundred eighty-nine thousand, five hundred sixty-eight".