516221392 has 20 divisors (see below), whose sum is σ = 1012841920. Its totient is φ = 254842848.

The previous prime is 516221389. The next prime is 516221401. The reversal of 516221392 is 293122615.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 202938 + ... + 205465.

It is an arithmetic number, because the mean of its divisors is an integer number (50642096).

Almost surely, 2^516221392 is an apocalyptic number.

It is an amenable number.

516221392 is a deficient number, since it is larger than the sum of its proper divisors (496620528).

516221392 is a wasteful number, since it uses less digits than its factorization.

516221392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408490 (or 408484 counting only the distinct ones).

The product of its digits is 6480, while the sum is 31.

The square root of 516221392 is about 22720.5059802813. The cubic root of 516221392 is about 802.1926266618.

The spelling of 516221392 in words is "five hundred sixteen million, two hundred twenty-one thousand, three hundred ninety-two".