504321228 has 72 divisors (see below), whose sum is σ = 1328832960. Its totient is φ = 167242320.

The previous prime is 504321217. The next prime is 504321229. The reversal of 504321228 is 822123405.

504321228 is a `hidden beast` number, since 5 + 0 + 432 + 1 + 228 = 666.

It is a super-3 number, since 3×504321228³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (504321229) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 203863 + ... + 206321.

Almost surely, 2^504321228 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 504321228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (664416480).

504321228 is an abundant number, since it is smaller than the sum of its proper divisors (824511732).

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

504321228 is a wasteful number, since it uses less digits than its factorization.

504321228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2689 (or 2675 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 504321228 is about 22457.0974972279. The cubic root of 504321228 is about 795.9804777078.

The spelling of 504321228 in words is "five hundred four million, three hundred twenty-one thousand, two hundred twenty-eight".