730660 has 48 divisors (see below), whose sum is σ = 1862784. Its totient is φ = 235008.

The previous prime is 730637. The next prime is 730663. The reversal of 730660 is 66037.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (730663) by changing a digit.

730660 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2227 + ... + 2533.

It is an arithmetic number, because the mean of its divisors is an integer number (38808).

2⁷³⁰⁶⁶⁰ is an apocalyptic number.

730660 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 730660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (931392).

730660 is an abundant number, since it is smaller than the sum of its proper divisors (1132124).

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

730660 is a wasteful number, since it uses less digits than its factorization.

730660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340 (or 338 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 22.

The square root of 730660 is about 854.7865230571. The cubic root of 730660 is about 90.0682609712.

Adding to 730660 its reverse (66037), we get a palindrome (796697).

The spelling of 730660 in words is "seven hundred thirty thousand, six hundred sixty".