20300461 has 4 divisors (see below), whose sum is σ = 20317500. Its totient is φ = 20283424.

The previous prime is 20300459. The next prime is 20300477. The reversal of 20300461 is 16400302.

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 7123561 + 13176900 = 2669^2 + 3630^2 .

It is a cyclic number.

It is not a de Polignac number, because 20300461 - 2¹ = 20300459 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 (20300411) 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 3 ways as a sum of consecutive naturals, for example, 6586 + ... + 9163.

It is an arithmetic number, because the mean of its divisors is an integer number (5079375).

Almost surely, 2^20300461 is an apocalyptic number.

It is an amenable number.

20300461 is a deficient number, since it is larger than the sum of its proper divisors (17039).

20300461 is a wasteful number, since it uses less digits than its factorization.

20300461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17038.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 20300461 is about 4505.6032892389. The cubic root of 20300461 is about 272.7943053782.

Adding to 20300461 its reverse (16400302), we get a palindrome (36700763).

The spelling of 20300461 in words is "twenty million, three hundred thousand, four hundred sixty-one".