630551130 has 64 divisors (see below), whose sum is σ = 1655399808. Its totient is φ = 152444160.

The previous prime is 630551041. The next prime is 630551149. The reversal of 630551130 is 31155036.

630551130 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 630551130.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 128604 + ... + 133416.

It is an arithmetic number, because the mean of its divisors is an integer number (25865622).

Almost surely, 2^630551130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 630551130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (827699904).

630551130 is an abundant number, since it is smaller than the sum of its proper divisors (1024848678).

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

630551130 is a wasteful number, since it uses less digits than its factorization.

630551130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5231.

The product of its (nonzero) digits is 1350, while the sum is 24.

The square root of 630551130 is about 25110.7771683793. Note that the first 3 decimals coincide. The cubic root of 630551130 is about 857.5117956598.

The spelling of 630551130 in words is "six hundred thirty million, five hundred fifty-one thousand, one hundred thirty".