30073445 has 8 divisors (see below), whose sum is σ = 36582936. Its totient is φ = 23728896.

The previous prime is 30073411. The next prime is 30073451. The reversal of 30073445 is 54437003.

It can be written as a sum of positive squares in 4 ways, for example, as 9042049 + 21031396 = 3007^2 + 4586^2 .

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 30073445 - 2¹⁶ = 30007909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 40832 + ... + 41561.

It is an arithmetic number, because the mean of its divisors is an integer number (4572867).

Almost surely, 2^30073445 is an apocalyptic number.

It is an amenable number.

30073445 is a deficient number, since it is larger than the sum of its proper divisors (6509491).

30073445 is an equidigital number, since it uses as much as digits as its factorization.

30073445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82471.

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

The square root of 30073445 is about 5483.9260571237. The cubic root of 30073445 is about 310.9766113861.

The spelling of 30073445 in words is "thirty million, seventy-three thousand, four hundred forty-five".