500651428 has 24 divisors (see below), whose sum is σ = 930350232. Its totient is φ = 234921984.

The previous prime is 500651423. The next prime is 500651429. The reversal of 500651428 is 824156005.

It can be written as a sum of positive squares in 4 ways, for example, as 262504804 + 238146624 = 16202^2 + 15432^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 500651428.

It is not an unprimeable number, because it can be changed into a prime (500651423) 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 7 ways as a sum of consecutive naturals, for example, 13576 + ... + 34432.

It is an arithmetic number, because the mean of its divisors is an integer number (38764593).

Almost surely, 2^500651428 is an apocalyptic number.

It is an amenable number.

500651428 is a deficient number, since it is larger than the sum of its proper divisors (429698804).

500651428 is a wasteful number, since it uses less digits than its factorization.

500651428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21231 (or 21229 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 500651428 is about 22375.2414065189. The cubic root of 500651428 is about 794.0450688950.

The spelling of 500651428 in words is "five hundred million, six hundred fifty-one thousand, four hundred twenty-eight".