730458 has 32 divisors (see below), whose sum is σ = 1653120. Its totient is φ = 242028.

The previous prime is 730451. The next prime is 730459. The reversal of 730458 is 854037.

730458 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 730458.

It is not an unprimeable number, because it can be changed into a prime (730451) by changing a digit.

730458 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, 4291 + ... + 4457.

It is an arithmetic number, because the mean of its divisors is an integer number (51660).

2⁷³⁰⁴⁵⁸ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 730458, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (826560).

730458 is an abundant number, since it is smaller than the sum of its proper divisors (922662).

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

730458 is an equidigital number, since it uses as much as digits as its factorization.

730458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190 (or 172 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 730458 is about 854.6683567326. The cubic root of 730458 is about 90.0599600444.

The spelling of 730458 in words is "seven hundred thirty thousand, four hundred fifty-eight".