518428782 has 16 divisors (see below), whose sum is σ = 1152064080. Its totient is φ = 172809576.

The previous prime is 518428777. The next prime is 518428831. The reversal of 518428782 is 287824815.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 4800213 + ... + 4800320.

It is an arithmetic number, because the mean of its divisors is an integer number (72004005).

Almost surely, 2^518428782 is an apocalyptic number.

518428782 is an abundant number, since it is smaller than the sum of its proper divisors (633635298).

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

518428782 is a wasteful number, since it uses less digits than its factorization.

518428782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9600544 (or 9600538 counting only the distinct ones).

The product of its digits is 286720, while the sum is 45.

The square root of 518428782 is about 22769.0312046868. The cubic root of 518428782 is about 803.3344068136.

The spelling of 518428782 in words is "five hundred eighteen million, four hundred twenty-eight thousand, seven hundred eighty-two".