630642012 has 96 divisors (see below), whose sum is σ = 1975755264. Its totient is φ = 151200000.

The previous prime is 630641983. The next prime is 630642041. The reversal of 630642012 is 210246036.

It is an interprime number because it is at equal distance from previous prime (630641983) and next prime (630642041).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14239 + ... + 38262.

It is an arithmetic number, because the mean of its divisors is an integer number (20580784).

Almost surely, 2^630642012 is an apocalyptic number.

It is an amenable number.

630642012 is an abundant number, since it is smaller than the sum of its proper divisors (1345113252).

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

630642012 is a wasteful number, since it uses less digits than its factorization.

630642012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52539 (or 52537 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 630642012 is about 25112.5867245889. The cubic root of 630642012 is about 857.5529917074.

Adding to 630642012 its reverse (210246036), we get a palindrome (840888048).

The spelling of 630642012 in words is "six hundred thirty million, six hundred forty-two thousand, twelve".