730545043 has 4 divisors (see below), whose sum is σ = 732232648. Its totient is φ = 728857440.

The previous prime is 730545031. The next prime is 730545073. The reversal of 730545043 is 340545037.

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

It is a cyclic number.

It is not a de Polignac number, because 730545043 - 2²¹ = 728447891 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 730544996 and 730545014.

It is not an unprimeable number, because it can be changed into a prime (730545073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 843153 + ... + 844018.

It is an arithmetic number, because the mean of its divisors is an integer number (183058162).

Almost surely, 2^730545043 is an apocalyptic number.

730545043 is a deficient number, since it is larger than the sum of its proper divisors (1687605).

730545043 is a wasteful number, since it uses less digits than its factorization.

730545043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1687604.

The product of its (nonzero) digits is 25200, while the sum is 31.

The square root of 730545043 is about 27028.5967634282. The cubic root of 730545043 is about 900.6353715069.

The spelling of 730545043 in words is "seven hundred thirty million, five hundred forty-five thousand, forty-three".