830640530 has 8 divisors (see below), whose sum is σ = 1495152972. Its totient is φ = 332256208.

The previous prime is 830640529. The next prime is 830640557. The reversal of 830640530 is 35046038.

It can be written as a sum of positive squares in 2 ways, for example, as 798684121 + 31956409 = 28261^2 + 5653^2 .

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 = 830640493 and 830640502.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41532017 + ... + 41532036.

Almost surely, 2^830640530 is an apocalyptic number.

830640530 is a deficient number, since it is larger than the sum of its proper divisors (664512442).

830640530 is a wasteful number, since it uses less digits than its factorization.

830640530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83064060.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 830640530 is about 28820.8349983133. The cubic root of 830640530 is about 940.0213251538.

Adding to 830640530 its reverse (35046038), we get a palindrome (865686568).

The spelling of 830640530 in words is "eight hundred thirty million, six hundred forty thousand, five hundred thirty".