730478 has 8 divisors (see below), whose sum is σ = 1252272. Its totient is φ = 313056.

The previous prime is 730469. The next prime is 730487. The reversal of 730478 is 874037.

It is an interprime number because it is at equal distance from previous prime (730469) and next prime (730487).

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

It is an Ulam number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 730478.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 26075 + ... + 26102.

It is an arithmetic number, because the mean of its divisors is an integer number (156534).

2⁷³⁰⁴⁷⁸ is an apocalyptic number.

730478 is a deficient number, since it is larger than the sum of its proper divisors (521794).

730478 is a wasteful number, since it uses less digits than its factorization.

730478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52186.

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 730478 is about 854.6800570974. The cubic root of 730478 is about 90.0607819866.

The spelling of 730478 in words is "seven hundred thirty thousand, four hundred seventy-eight".