20473741 has 4 divisors (see below), whose sum is σ = 20860092. Its totient is φ = 20087392.

The previous prime is 20473723. The next prime is 20473751. The reversal of 20473741 is 14737402.

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 17816841 + 2656900 = 4221^2 + 1630^2 .

It is a cyclic number.

It is not a de Polignac number, because 20473741 - 2⁵ = 20473709 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 (20473721) 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, 193096 + ... + 193201.

It is an arithmetic number, because the mean of its divisors is an integer number (5215023).

Almost surely, 2^20473741 is an apocalyptic number.

It is an amenable number.

20473741 is a deficient number, since it is larger than the sum of its proper divisors (386351).

20473741 is an equidigital number, since it uses as much as digits as its factorization.

20473741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386350.

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 20473741 is about 4524.7918184155. The cubic root of 20473741 is about 273.5682769111.

The spelling of 20473741 in words is "twenty million, four hundred seventy-three thousand, seven hundred forty-one".