503899380 has 336 divisors, whose sum is σ = 1784825280. Its totient is φ = 118692864.

The previous prime is 503899379. The next prime is 503899427. The reversal of 503899380 is 83998305.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 4709287 + ... + 4709393.

It is an arithmetic number, because the mean of its divisors is an integer number (5311980).

Almost surely, 2^503899380 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 503899380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (892412640).

503899380 is an abundant number, since it is smaller than the sum of its proper divisors (1280925900).

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

503899380 is a wasteful number, since it uses less digits than its factorization.

503899380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170 (or 153 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 503899380 is about 22447.7032232699. The cubic root of 503899380 is about 795.7584786979.

The spelling of 503899380 in words is "five hundred three million, eight hundred ninety-nine thousand, three hundred eighty".