730603220 has 48 divisors (see below), whose sum is σ = 1634039568. Its totient is φ = 273438720.

The previous prime is 730603207. The next prime is 730603229. The reversal of 730603220 is 22306037.

730603220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 246427204 + 484176016 = 15698^2 + 22004^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (730603229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52610 + ... + 65030.

It is an arithmetic number, because the mean of its divisors is an integer number (34042491).

Almost surely, 2^730603220 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 730603220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (817019784).

730603220 is an abundant number, since it is smaller than the sum of its proper divisors (903436348).

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

730603220 is a wasteful number, since it uses less digits than its factorization.

730603220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12620 (or 12618 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 23.

The square root of 730603220 is about 27029.6729539963. The cubic root of 730603220 is about 900.6592782569.

Adding to 730603220 its reverse (22306037), we get a palindrome (752909257).

The spelling of 730603220 in words is "seven hundred thirty million, six hundred three thousand, two hundred twenty".