20441743 has 4 divisors (see below), whose sum is σ = 23362000. Its totient is φ = 17521488.

The previous prime is 20441699. The next prime is 20441747. The reversal of 20441743 is 34714402.

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

It is a cyclic number.

It is not a de Polignac number, because 20441743 - 2¹⁷ = 20310671 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 (20441747) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1460118 + ... + 1460131.

It is an arithmetic number, because the mean of its divisors is an integer number (5840500).

Almost surely, 2^20441743 is an apocalyptic number.

20441743 is a deficient number, since it is larger than the sum of its proper divisors (2920257).

20441743 is an equidigital number, since it uses as much as digits as its factorization.

20441743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2920256.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 20441743 is about 4521.2545825246. The cubic root of 20441743 is about 273.4256844723.

The spelling of 20441743 in words is "twenty million, four hundred forty-one thousand, seven hundred forty-three".