630129742 has 16 divisors (see below), whose sum is σ = 1034936064. Its totient is φ = 285363000.

The previous prime is 630129739. The next prime is 630129749. The reversal of 630129742 is 247921036.

It is a junction number, because it is equal to n+sod(n) for n = 630129698 and 630129707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630129749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46884 + ... + 58807.

It is an arithmetic number, because the mean of its divisors is an integer number (64683504).

Almost surely, 2^630129742 is an apocalyptic number.

630129742 is a deficient number, since it is larger than the sum of its proper divisors (404806322).

630129742 is a wasteful number, since it uses less digits than its factorization.

630129742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105975.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 630129742 is about 25102.3851854759. The cubic root of 630129742 is about 857.3207322725.

The spelling of 630129742 in words is "six hundred thirty million, one hundred twenty-nine thousand, seven hundred forty-two".