516243004 has 48 divisors (see below), whose sum is σ = 960680448. Its totient is φ = 242244288.

The previous prime is 516243001. The next prime is 516243023. The reversal of 516243004 is 400342615.

It is a self number, because there is not a number n which added to its sum of digits gives 516243004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516243001) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1487559 + ... + 1487905.

It is an arithmetic number, because the mean of its divisors is an integer number (20014176).

Almost surely, 2^516243004 is an apocalyptic number.

It is an amenable number.

516243004 is a deficient number, since it is larger than the sum of its proper divisors (444437444).

516243004 is a wasteful number, since it uses less digits than its factorization.

516243004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 634 (or 632 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 516243004 is about 22720.9815809089. The cubic root of 516243004 is about 802.2038213064.

Adding to 516243004 its reverse (400342615), we get a palindrome (916585619).

The spelling of 516243004 in words is "five hundred sixteen million, two hundred forty-three thousand, four".