503730 has 48 divisors (see below), whose sum is σ = 1361880. Its totient is φ = 129024.

The previous prime is 503717. The next prime is 503743. The reversal of 503730 is 37305.

It is an interprime number because it is at equal distance from previous prime (503717) and next prime (503743).

It can be written as a sum of positive squares in 4 ways, for example, as 349281 + 154449 = 591^2 + 393^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 503730.

It is an unprimeable number.

503730 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2514 + ... + 2706.

2⁵⁰³⁷³⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 503730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (680940).

503730 is an abundant number, since it is smaller than the sum of its proper divisors (858150).

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

503730 is a wasteful number, since it uses less digits than its factorization.

503730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235 (or 232 counting only the distinct ones).

The product of its (nonzero) digits is 315, while the sum is 18.

The square root of 503730 is about 709.7393887900. The cubic root of 503730 is about 79.5669307009.

The spelling of 503730 in words is "five hundred three thousand, seven hundred thirty".