500361728 has 20 divisors (see below), whose sum is σ = 999747210. Its totient is φ = 250180608.

The previous prime is 500361721. The next prime is 500361733. The reversal of 500361728 is 827163005.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 478384384 + 21977344 = 21872^2 + 4688^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 500361694 and 500361703.

It is not an unprimeable number, because it can be changed into a prime (500361721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 488123 + ... + 489146.

Almost surely, 2^500361728 is an apocalyptic number.

It is an amenable number.

500361728 is a deficient number, since it is larger than the sum of its proper divisors (499385482).

500361728 is an frugal number, since it uses more digits than its factorization.

500361728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 977287 (or 977271 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 500361728 is about 22368.7667965849. The cubic root of 500361728 is about 793.8918823148.

The spelling of 500361728 in words is "five hundred million, three hundred sixty-one thousand, seven hundred twenty-eight".