630039256 has 144 divisors (see below), whose sum is σ = 1555621200. Its totient is φ = 238170240.

The previous prime is 630039247. The next prime is 630039269. The reversal of 630039256 is 652930036.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1754805 + ... + 1755163.

It is an arithmetic number, because the mean of its divisors is an integer number (10802925).

Almost surely, 2^630039256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 630039256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (777810600).

630039256 is an abundant number, since it is smaller than the sum of its proper divisors (925581944).

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

630039256 is a wasteful number, since it uses less digits than its factorization.

630039256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438 (or 416 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 34.

The square root of 630039256 is about 25100.5827820790. The cubic root of 630039256 is about 857.2796935084.

The spelling of 630039256 in words is "six hundred thirty million, thirty-nine thousand, two hundred fifty-six".