730730 has 64 divisors (see below), whose sum is σ = 1790208. Its totient is φ = 207360.

The previous prime is 730727. The next prime is 730747. The reversal of 730730 is 37037.

730730 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 9974 + ... + 10046.

It is an arithmetic number, because the mean of its divisors is an integer number (27972).

2⁷³⁰⁷³⁰ is an apocalyptic number.

730730 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

730730 is an abundant number, since it is smaller than the sum of its proper divisors (1059478).

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

730730 is a wasteful number, since it uses less digits than its factorization.

730730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111.

The product of its (nonzero) digits is 441, while the sum is 20.

The square root of 730730 is about 854.8274679723. The cubic root of 730730 is about 90.0711371731.

Adding to 730730 its reverse (37037), we get a palindrome (767767).

It can be divided in two parts, 7307 and 30, that added together give a palindrome (7337).

The spelling of 730730 in words is "seven hundred thirty thousand, seven hundred thirty".