730340 has 36 divisors (see below), whose sum is σ = 1683444. Its totient is φ = 264576.

The previous prime is 730339. The next prime is 730363. The reversal of 730340 is 43037.

It can be written as a sum of positive squares in 6 ways, for example, as 1024 + 729316 = 32^2 + 854^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13754 + ... + 13806.

2⁷³⁰³⁴⁰ 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 730340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (841722).

730340 is an abundant number, since it is smaller than the sum of its proper divisors (953104).

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

730340 is a wasteful number, since it uses less digits than its factorization.

730340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128 (or 73 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 17.

The square root of 730340 is about 854.5993213196. The cubic root of 730340 is about 90.0551102800.

Adding to 730340 its reverse (43037), we get a palindrome (773377).

The spelling of 730340 in words is "seven hundred thirty thousand, three hundred forty".