630103530 has 64 divisors (see below), whose sum is σ = 1745123328. Its totient is φ = 142620480.

The previous prime is 630103511. The next prime is 630103571. The reversal of 630103530 is 35301036.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 630103497 and 630103506.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7065 + ... + 36195.

It is an arithmetic number, because the mean of its divisors is an integer number (27267552).

Almost surely, 2^630103530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 630103530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (872561664).

630103530 is an abundant number, since it is smaller than the sum of its proper divisors (1115019798).

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

630103530 is a wasteful number, since it uses less digits than its factorization.

630103530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29251.

The product of its (nonzero) digits is 810, while the sum is 21.

The square root of 630103530 is about 25101.8630782657. The cubic root of 630103530 is about 857.3088445605.

Adding to 630103530 its reverse (35301036), we get a palindrome (665404566).

The spelling of 630103530 in words is "six hundred thirty million, one hundred three thousand, five hundred thirty".