504022428 has 216 divisors, whose sum is σ = 1649880960. Its totient is φ = 128459520.

The previous prime is 504022423. The next prime is 504022429. The reversal of 504022428 is 824220405.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (504022423) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 710538 + ... + 711246.

Almost surely, 2^504022428 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 504022428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (824940480).

504022428 is an abundant number, since it is smaller than the sum of its proper divisors (1145858532).

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

504022428 is a wasteful number, since it uses less digits than its factorization.

504022428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777 (or 765 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

The square root of 504022428 is about 22450.4438263478. The cubic root of 504022428 is about 795.8232459406.

The spelling of 504022428 in words is "five hundred four million, twenty-two thousand, four hundred twenty-eight".