630306530 has 32 divisors (see below), whose sum is σ = 1328261760. Its totient is φ = 210833280.

The previous prime is 630306527. The next prime is 630306533. The reversal of 630306530 is 35603036.

630306530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (630306527) and next prime (630306533).

It is a self number, because there is not a number n which added to its sum of digits gives 630306530.

It is not an unprimeable number, because it can be changed into a prime (630306533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106940 + ... + 112679.

It is an arithmetic number, because the mean of its divisors is an integer number (41508180).

Almost surely, 2^630306530 is an apocalyptic number.

630306530 is an abundant number, since it is smaller than the sum of its proper divisors (697955230).

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

630306530 is a wasteful number, since it uses less digits than its factorization.

630306530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219674.

The product of its (nonzero) digits is 4860, while the sum is 26.

The square root of 630306530 is about 25105.9062772090. The cubic root of 630306530 is about 857.4009008661.

Adding to 630306530 its reverse (35603036), we get a palindrome (665909566).

The spelling of 630306530 in words is "six hundred thirty million, three hundred six thousand, five hundred thirty".