516218228 has 12 divisors (see below), whose sum is σ = 927797892. Its totient is φ = 251133120.

The previous prime is 516218179. The next prime is 516218281. The reversal of 516218228 is 822812615.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 441084004 + 75134224 = 21002^2 + 8668^2 .

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 3 ways as a sum of consecutive naturals, for example, 1743833 + ... + 1744128.

It is an arithmetic number, because the mean of its divisors is an integer number (77316491).

Almost surely, 2^516218228 is an apocalyptic number.

It is an amenable number.

516218228 is a deficient number, since it is larger than the sum of its proper divisors (411579664).

516218228 is a wasteful number, since it uses less digits than its factorization.

516218228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3488002 (or 3488000 counting only the distinct ones).

The product of its digits is 15360, while the sum is 35.

The square root of 516218228 is about 22720.4363514436. The cubic root of 516218228 is about 802.1909877380.

The spelling of 516218228 in words is "five hundred sixteen million, two hundred eighteen thousand, two hundred twenty-eight".