30285445 has 8 divisors (see below), whose sum is σ = 36405144. Its totient is φ = 24186624.

The previous prime is 30285443. The next prime is 30285461. The reversal of 30285445 is 54458203.

It can be written as a sum of positive squares in 4 ways, for example, as 3896676 + 26388769 = 1974^2 + 5137^2 .

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 30285445 - 2¹ = 30285443 is a prime.

It is a super-3 number, since 3×30285445³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30285443) 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 7 ways as a sum of consecutive naturals, for example, 1824 + ... + 7993.

It is an arithmetic number, because the mean of its divisors is an integer number (4550643).

Almost surely, 2^30285445 is an apocalyptic number.

It is an amenable number.

30285445 is a deficient number, since it is larger than the sum of its proper divisors (6119699).

30285445 is an equidigital number, since it uses as much as digits as its factorization.

30285445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10439.

The product of its (nonzero) digits is 19200, while the sum is 31.

The square root of 30285445 is about 5503.2213293670. The cubic root of 30285445 is about 311.7056347258.

The spelling of 30285445 in words is "thirty million, two hundred eighty-five thousand, four hundred forty-five".