730001443 has 4 divisors (see below), whose sum is σ = 730395568. Its totient is φ = 729607320.

The previous prime is 730001429. The next prime is 730001477. The reversal of 730001443 is 344100037.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 344100037 = 37 ⋅9300001.

It is a cyclic number.

It is not a de Polignac number, because 730001443 - 2¹⁷ = 729870371 is a prime.

It is a Duffinian number.

730001443 is a modest number, since divided by 1443 gives 730 as remainder.

It is not an unprimeable number, because it can be changed into a prime (730001483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 194271 + ... + 197992.

It is an arithmetic number, because the mean of its divisors is an integer number (182598892).

Almost surely, 2^730001443 is an apocalyptic number.

730001443 is a deficient number, since it is larger than the sum of its proper divisors (394125).

730001443 is a wasteful number, since it uses less digits than its factorization.

730001443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394124.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 730001443 is about 27018.5388761125. The cubic root of 730001443 is about 900.4119278937.

The spelling of 730001443 in words is "seven hundred thirty million, one thousand, four hundred forty-three".