445830013 has 4 divisors (see below), whose sum is σ = 446603260. Its totient is φ = 445056768.

The previous prime is 445829987. The next prime is 445830037. The reversal of 445830013 is 310038544.

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

It can be written as a sum of positive squares in 2 ways, for example, as 210453049 + 235376964 = 14507^2 + 15342^2 .

It is a cyclic number.

It is not a de Polignac number, because 445830013 - 2²⁵ = 412275581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445830113) 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, 385758 + ... + 386911.

It is an arithmetic number, because the mean of its divisors is an integer number (111650815).

Almost surely, 2^445830013 is an apocalyptic number.

It is an amenable number.

445830013 is a deficient number, since it is larger than the sum of its proper divisors (773247).

445830013 is an equidigital number, since it uses as much as digits as its factorization.

445830013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 773246.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 445830013 is about 21114.6871395245. The cubic root of 445830013 is about 763.9350457145.

Adding to 445830013 its reverse (310038544), we get a palindrome (755868557).

The spelling of 445830013 in words is "four hundred forty-five million, eight hundred thirty thousand, thirteen".