503864280 has 128 divisors (see below), whose sum is σ = 1703462400. Its totient is φ = 132451200.

The previous prime is 503864267. The next prime is 503864327. The reversal of 503864280 is 82468305.

503864280 is a `hidden beast` number, since 5 + 0 + 3 + 8 + 642 + 8 + 0 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73395 + ... + 79965.

It is an arithmetic number, because the mean of its divisors is an integer number (13308300).

Almost surely, 2^503864280 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 503864280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (851731200).

503864280 is an abundant number, since it is smaller than the sum of its proper divisors (1199598120).

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

503864280 is a wasteful number, since it uses less digits than its factorization.

503864280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6662 (or 6652 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 503864280 is about 22446.9213924761. The cubic root of 503864280 is about 795.7400016155.

The spelling of 503864280 in words is "five hundred three million, eight hundred sixty-four thousand, two hundred eighty".