384630529 has 2 divisors, whose sum is σ = 384630530. Its totient is φ = 384630528.

The previous prime is 384630517. The next prime is 384630557. The reversal of 384630529 is 925036483.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 314991504 + 69639025 = 17748^2 + 8345^2 .

It is a cyclic number.

It is not a de Polignac number, because 384630529 - 2⁷ = 384630401 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 384630491 and 384630500.

It is not a weakly prime, because it can be changed into another prime (384630599) by changing a digit.

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 as a sum of consecutive naturals, namely, 192315264 + 192315265.

It is an arithmetic number, because the mean of its divisors is an integer number (192315265).

Almost surely, 2^384630529 is an apocalyptic number.

It is an amenable number.

384630529 is a deficient number, since it is larger than the sum of its proper divisors (1).

384630529 is an equidigital number, since it uses as much as digits as its factorization.

384630529 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 155520, while the sum is 40.

The square root of 384630529 is about 19611.9996175811. Note that the first 3 decimals coincide. The cubic root of 384630529 is about 727.2458484853.

The spelling of 384630529 in words is "three hundred eighty-four million, six hundred thirty thousand, five hundred twenty-nine".