630280868 has 24 divisors (see below), whose sum is σ = 1315370112. Its totient is φ = 258375744.

The previous prime is 630280813. The next prime is 630280919. The reversal of 630280868 is 868082036.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 488705 + ... + 489992.

It is an arithmetic number, because the mean of its divisors is an integer number (54807088).

Almost surely, 2^630280868 is an apocalyptic number.

It is an amenable number.

630280868 is an abundant number, since it is smaller than the sum of its proper divisors (685089244).

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

630280868 is a wasteful number, since it uses less digits than its factorization.

630280868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 978731 (or 978729 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 41.

The square root of 630280868 is about 25105.3951970488. The cubic root of 630280868 is about 857.3892647708.

The spelling of 630280868 in words is "six hundred thirty million, two hundred eighty thousand, eight hundred sixty-eight".