730438 has 8 divisors (see below), whose sum is σ = 1110888. Its totient is φ = 360144.

The previous prime is 730421. The next prime is 730447. The reversal of 730438 is 834037.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2356 + ... + 2647.

It is an arithmetic number, because the mean of its divisors is an integer number (138861).

2⁷³⁰⁴³⁸ is an apocalyptic number.

730438 is a deficient number, since it is larger than the sum of its proper divisors (380450).

730438 is a wasteful number, since it uses less digits than its factorization.

730438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5078.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 730438 is about 854.6566562076. The cubic root of 730438 is about 90.0591380872.

The spelling of 730438 in words is "seven hundred thirty thousand, four hundred thirty-eight".