630365138 has 8 divisors (see below), whose sum is σ = 1018282188. Its totient is φ = 290937744.

The previous prime is 630365123. The next prime is 630365171. The reversal of 630365138 is 831563036.

630365138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 628153969 + 2211169 = 25063^2 + 1487^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 630365098 and 630365107.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12122381 + ... + 12122432.

Almost surely, 2^630365138 is an apocalyptic number.

630365138 is a deficient number, since it is larger than the sum of its proper divisors (387917050).

630365138 is a wasteful number, since it uses less digits than its factorization.

630365138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24244828.

The product of its (nonzero) digits is 38880, while the sum is 35.

The square root of 630365138 is about 25107.0734654599. The cubic root of 630365138 is about 857.4274747061.

The spelling of 630365138 in words is "six hundred thirty million, three hundred sixty-five thousand, one hundred thirty-eight".