730830 has 32 divisors (see below), whose sum is σ = 1858464. Its totient is φ = 183296.

The previous prime is 730823. The next prime is 730837. The reversal of 730830 is 38037.

It is an interprime number because it is at equal distance from previous prime (730823) and next prime (730837).

It is a super-2 number, since 2×730830² = 1068224977800, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 730797 and 730806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (730837) by changing a digit.

730830 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 (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 207 + ... + 1226.

It is an arithmetic number, because the mean of its divisors is an integer number (58077).

2⁷³⁰⁸³⁰ is an apocalyptic number.

730830 is an abundant number, since it is smaller than the sum of its proper divisors (1127634).

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

730830 is a wasteful number, since it uses less digits than its factorization.

730830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1460.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 730830 is about 854.8859573066. The cubic root of 730830 is about 90.0752457142.

Adding to 730830 its reverse (38037), we get a palindrome (768867).

The spelling of 730830 in words is "seven hundred thirty thousand, eight hundred thirty".