630397308 has 24 divisors (see below), whose sum is σ = 1471333248. Its totient is φ = 210074416.

The previous prime is 630397301. The next prime is 630397319. The reversal of 630397308 is 803793036.

630397308 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630397301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80035 + ... + 87557.

It is an arithmetic number, because the mean of its divisors is an integer number (61305552).

Almost surely, 2^630397308 is an apocalyptic number.

It is an amenable number.

630397308 is an abundant number, since it is smaller than the sum of its proper divisors (840935940).

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

630397308 is a wasteful number, since it uses less digits than its factorization.

630397308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14513 (or 14511 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 39.

The square root of 630397308 is about 25107.7141133955. The cubic root of 630397308 is about 857.4420604178.

The spelling of 630397308 in words is "six hundred thirty million, three hundred ninety-seven thousand, three hundred eight".