730445 has 8 divisors (see below), whose sum is σ = 883680. Its totient is φ = 579600.

The previous prime is 730421. The next prime is 730447. The reversal of 730445 is 544037.

730445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 730445 - 2¹⁴ = 714061 is a prime.

It is a nialpdrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 730445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (730447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170 + ... + 1220.

It is an arithmetic number, because the mean of its divisors is an integer number (110460).

2⁷³⁰⁴⁴⁵ is an apocalyptic number.

It is an amenable number.

730445 is a deficient number, since it is larger than the sum of its proper divisors (153235).

730445 is a wasteful number, since it uses less digits than its factorization.

730445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1195.

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 730445 is about 854.6607514096. The cubic root of 730445 is about 90.0594257739.

The spelling of 730445 in words is "seven hundred thirty thousand, four hundred forty-five".