503940528 has 200 divisors, whose sum is σ = 1795558688. Its totient is φ = 132876288.

The previous prime is 503940527. The next prime is 503940539. The reversal of 503940528 is 825049305.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 503940492 and 503940501.

It is not an unprimeable number, because it can be changed into a prime (503940527) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 115800 + ... + 120072.

Almost surely, 2^503940528 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 503940528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (897779344).

503940528 is an abundant number, since it is smaller than the sum of its proper divisors (1291618160).

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

503940528 is a wasteful number, since it uses less digits than its factorization.

503940528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4313 (or 4298 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 503940528 is about 22448.6197348523. The cubic root of 503940528 is about 795.7801384313.

The spelling of 503940528 in words is "five hundred three million, nine hundred forty thousand, five hundred twenty-eight".