73430045 has 8 divisors (see below), whose sum is σ = 94894296. Its totient is φ = 54225216.

The previous prime is 73430009. The next prime is 73430051. The reversal of 73430045 is 54003437.

It can be written as a sum of positive squares in 4 ways, for example, as 15578809 + 57851236 = 3947^2 + 7606^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 73430045 - 2⁶ = 73429981 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 73429996 and 73430023.

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 7 ways as a sum of consecutive naturals, for example, 564782 + ... + 564911.

It is an arithmetic number, because the mean of its divisors is an integer number (11861787).

Almost surely, 2^73430045 is an apocalyptic number.

It is an amenable number.

73430045 is a deficient number, since it is larger than the sum of its proper divisors (21464251).

73430045 is a wasteful number, since it uses less digits than its factorization.

73430045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1129711.

The product of its (nonzero) digits is 5040, while the sum is 26.

The square root of 73430045 is about 8569.1332700571. The cubic root of 73430045 is about 418.7530000528.

The spelling of 73430045 in words is "seventy-three million, four hundred thirty thousand, forty-five".