20300445 has 24 divisors (see below), whose sum is σ = 38387232. Its totient is φ = 9842400.

The previous prime is 20300419. The next prime is 20300459. The reversal of 20300445 is 54400302.

It is a happy number.

It is not a de Polignac number, because 20300445 - 2⁷ = 20300317 is a prime.

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 23 ways as a sum of consecutive naturals, for example, 20011 + ... + 21000.

It is an arithmetic number, because the mean of its divisors is an integer number (1599468).

Almost surely, 2^20300445 is an apocalyptic number.

It is an amenable number.

20300445 is a deficient number, since it is larger than the sum of its proper divisors (18086787).

20300445 is a wasteful number, since it uses less digits than its factorization.

20300445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41033 (or 41030 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 20300445 is about 4505.6015136716. The cubic root of 20300445 is about 272.7942337097.

Adding to 20300445 its reverse (54400302), we get a palindrome (74700747).

The spelling of 20300445 in words is "twenty million, three hundred thousand, four hundred forty-five".