730838 has 4 divisors (see below), whose sum is σ = 1096260. Its totient is φ = 365418.

The previous prime is 730837. The next prime is 730843. The reversal of 730838 is 838037.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 730838.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 730838.

It is not an unprimeable number, because it can be changed into a prime (730837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 182708 + ... + 182711.

It is an arithmetic number, because the mean of its divisors is an integer number (274065).

2⁷³⁰⁸³⁸ is an apocalyptic number.

730838 is a deficient number, since it is larger than the sum of its proper divisors (365422).

730838 is a wasteful number, since it uses less digits than its factorization.

730838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365421.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 730838 is about 854.8906362805. The cubic root of 730838 is about 90.0755743814.

The spelling of 730838 in words is "seven hundred thirty thousand, eight hundred thirty-eight".