630641260 has 12 divisors (see below), whose sum is σ = 1324346688. Its totient is φ = 252256496.

The previous prime is 630641257. The next prime is 630641267. The reversal of 630641260 is 62146036.

630641260 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (630641267) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15766012 + ... + 15766051.

It is an arithmetic number, because the mean of its divisors is an integer number (110362224).

Almost surely, 2^630641260 is an apocalyptic number.

It is an amenable number.

630641260 is an abundant number, since it is smaller than the sum of its proper divisors (693705428).

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

630641260 is a wasteful number, since it uses less digits than its factorization.

630641260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31532072 (or 31532070 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 630641260 is about 25112.5717520130. The cubic root of 630641260 is about 857.5526508484.

Adding to 630641260 its reverse (62146036), we get a palindrome (692787296).

The spelling of 630641260 in words is "six hundred thirty million, six hundred forty-one thousand, two hundred sixty".