511940682 has 32 divisors (see below), whose sum is σ = 1241069760. Its totient is φ = 155133360.

The previous prime is 511940677. The next prime is 511940711. The reversal of 511940682 is 286049115.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 430333 + ... + 431520.

It is an arithmetic number, because the mean of its divisors is an integer number (38783430).

Almost surely, 2^511940682 is an apocalyptic number.

511940682 is an abundant number, since it is smaller than the sum of its proper divisors (729129078).

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

511940682 is a wasteful number, since it uses less digits than its factorization.

511940682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 861875 (or 861869 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 511940682 is about 22626.1062050013. The cubic root of 511940682 is about 799.9691040151.

Adding to 511940682 its reverse (286049115), we get a palindrome (797989797).

The spelling of 511940682 in words is "five hundred eleven million, nine hundred forty thousand, six hundred eighty-two".