500720628 has 24 divisors (see below), whose sum is σ = 1178690688. Its totient is φ = 165429376.

The previous prime is 500720611. The next prime is 500720663. The reversal of 500720628 is 826027005.

It is a super-2 number, since 2×500720628² = 501442294609428768, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 500720595 and 500720604.

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, 183276 + ... + 185987.

It is an arithmetic number, because the mean of its divisors is an integer number (49112112).

Almost surely, 2^500720628 is an apocalyptic number.

It is an amenable number.

500720628 is an abundant number, since it is smaller than the sum of its proper divisors (677970060).

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

500720628 is a wasteful number, since it uses less digits than its factorization.

500720628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369383 (or 369381 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 500720628 is about 22376.7877051198. The cubic root of 500720628 is about 794.0816514913.

The spelling of 500720628 in words is "five hundred million, seven hundred twenty thousand, six hundred twenty-eight".