20441329 has 8 divisors (see below), whose sum is σ = 21208320. Its totient is φ = 19687200.

The previous prime is 20441269. The next prime is 20441347. The reversal of 20441329 is 92314402.

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 20441329 - 2¹³ = 20433137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20441129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84 + ... + 6394.

It is an arithmetic number, because the mean of its divisors is an integer number (2651040).

Almost surely, 2^20441329 is an apocalyptic number.

It is an amenable number.

20441329 is a deficient number, since it is larger than the sum of its proper divisors (766991).

20441329 is an equidigital number, since it uses as much as digits as its factorization.

20441329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6431.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 20441329 is about 4521.2087985405. The cubic root of 20441329 is about 273.4238385926.

The spelling of 20441329 in words is "twenty million, four hundred forty-one thousand, three hundred twenty-nine".