630718356 has 24 divisors (see below), whose sum is σ = 1473927840. Its totient is φ = 209917792.

The previous prime is 630718331. The next prime is 630718373. The reversal of 630718356 is 653817036.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31971 + ... + 47786.

It is an arithmetic number, because the mean of its divisors is an integer number (61413660).

Almost surely, 2^630718356 is an apocalyptic number.

It is an amenable number.

630718356 is an abundant number, since it is smaller than the sum of its proper divisors (843209484).

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

630718356 is a wasteful number, since it uses less digits than its factorization.

630718356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80423 (or 80421 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 630718356 is about 25114.1067131602. The cubic root of 630718356 is about 857.5875947430.

The spelling of 630718356 in words is "six hundred thirty million, seven hundred eighteen thousand, three hundred fifty-six".