730500 has 48 divisors (see below), whose sum is σ = 2131584. Its totient is φ = 194400.

The previous prime is 730487. The next prime is 730537. The reversal of 730500 is 5037.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 730500.

It is an unprimeable number.

730500 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1257 + ... + 1743.

It is an arithmetic number, because the mean of its divisors is an integer number (44408).

2⁷³⁰⁵⁰⁰ 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 730500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1065792).

730500 is an abundant number, since it is smaller than the sum of its proper divisors (1401084).

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

730500 is a wasteful number, since it uses less digits than its factorization.

730500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509 (or 497 counting only the distinct ones).

The product of its (nonzero) digits is 105, while the sum is 15.

The square root of 730500 is about 854.6929273137. The cubic root of 730500 is about 90.0616861057.

Adding to 730500 its reverse (5037), we get a palindrome (735537).

The spelling of 730500 in words is "seven hundred thirty thousand, five hundred".