730120660 has 24 divisors (see below), whose sum is σ = 1542441600. Its totient is φ = 290298144.

The previous prime is 730120639. The next prime is 730120673. The reversal of 730120660 is 66021037.

It is a congruent number.

It is an unprimeable 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 7 ways as a sum of consecutive naturals, for example, 105960 + ... + 112639.

It is an arithmetic number, because the mean of its divisors is an integer number (64268400).

Almost surely, 2^730120660 is an apocalyptic number.

It is an amenable number.

730120660 is an abundant number, since it is smaller than the sum of its proper divisors (812320940).

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

730120660 is a wasteful number, since it uses less digits than its factorization.

730120660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218775 (or 218773 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 730120660 is about 27020.7449934305. The cubic root of 730120660 is about 900.4609408406.

Adding to 730120660 its reverse (66021037), we get a palindrome (796141697).

The spelling of 730120660 in words is "seven hundred thirty million, one hundred twenty thousand, six hundred sixty".