20289301 has 8 divisors (see below), whose sum is σ = 21178584. Its totient is φ = 19418880.

The previous prime is 20289293. The next prime is 20289317. The reversal of 20289301 is 10398202.

It can be written as a sum of positive squares in 4 ways, for example, as 4726276 + 15563025 = 2174^2 + 3945^2 .

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 20289301 - 2³ = 20289293 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 (20289361) 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, 2496 + ... + 6841.

It is an arithmetic number, because the mean of its divisors is an integer number (2647323).

Almost surely, 2^20289301 is an apocalyptic number.

It is an amenable number.

20289301 is a deficient number, since it is larger than the sum of its proper divisors (889283).

20289301 is an equidigital number, since it uses as much as digits as its factorization.

20289301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9431.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 20289301 is about 4504.3646610815. The cubic root of 20289301 is about 272.7443074579.

The spelling of 20289301 in words is "twenty million, two hundred eighty-nine thousand, three hundred one".