630355012 has 36 divisors (see below), whose sum is σ = 1286613804. Its totient is φ = 269438400.

The previous prime is 630355007. The next prime is 630355013. The reversal of 630355012 is 210553036.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 569108736 + 61246276 = 23856^2 + 7826^2 .

It is not an unprimeable number, because it can be changed into a prime (630355013) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 73762 + ... + 81862.

Almost surely, 2^630355012 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 630355012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (643306902).

630355012 is an abundant number, since it is smaller than the sum of its proper divisors (656258792).

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

630355012 is a wasteful number, since it uses less digits than its factorization.

630355012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8516 (or 8507 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 630355012 is about 25106.8718083317. The cubic root of 630355012 is about 857.4228835273.

The spelling of 630355012 in words is "six hundred thirty million, three hundred fifty-five thousand, twelve".