730215860 has 96 divisors (see below), whose sum is σ = 1721139840. Its totient is φ = 257984000.

The previous prime is 730215859. The next prime is 730215869. The reversal of 730215860 is 68512037.

It is a happy number.

730215860 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 not an unprimeable number, because it can be changed into a prime (730215869) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1310702 + ... + 1311258.

It is an arithmetic number, because the mean of its divisors is an integer number (17928540).

Almost surely, 2^730215860 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 730215860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (860569920).

730215860 is an abundant number, since it is smaller than the sum of its proper divisors (990923980).

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

730215860 is a wasteful number, since it uses less digits than its factorization.

730215860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 737 (or 735 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 730215860 is about 27022.5065454706. The cubic root of 730215860 is about 900.5000759958.

Adding to 730215860 its reverse (68512037), we get a palindrome (798727897).

The spelling of 730215860 in words is "seven hundred thirty million, two hundred fifteen thousand, eight hundred sixty".