630071250 has 80 divisors (see below), whose sum is σ = 1582368480. Its totient is φ = 167200000.

The previous prime is 630071243. The next prime is 630071251. The reversal of 630071250 is 52170036.

It is a self number, because there is not a number n which added to its sum of digits gives 630071250.

It is not an unprimeable number, because it can be changed into a prime (630071251) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1503541 + ... + 1503959.

It is an arithmetic number, because the mean of its divisors is an integer number (19779606).

Almost surely, 2^630071250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 630071250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (791184240).

630071250 is an abundant number, since it is smaller than the sum of its proper divisors (952297230).

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

630071250 is a wasteful number, since it uses less digits than its factorization.

630071250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 845 (or 830 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 630071250 is about 25101.2200898681. The cubic root of 630071250 is about 857.2942044256.

The spelling of 630071250 in words is "six hundred thirty million, seventy-one thousand, two hundred fifty".