20705341 has 4 divisors (see below), whose sum is σ = 20742300. Its totient is φ = 20668384.

The previous prime is 20705323. The next prime is 20705357. The reversal of 20705341 is 14350702.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14350702 = 2 ⋅7175351.

It can be written as a sum of positive squares in 2 ways, for example, as 12809241 + 7896100 = 3579^2 + 2810^2 .

It is a cyclic number.

It is not a de Polignac number, because 20705341 - 2⁵ = 20705309 is a prime.

It is a super-2 number, since 2×20705341² = 857422291852562, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20705381) 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, 17626 + ... + 18763.

It is an arithmetic number, because the mean of its divisors is an integer number (5185575).

Almost surely, 2^20705341 is an apocalyptic number.

It is an amenable number.

20705341 is a deficient number, since it is larger than the sum of its proper divisors (36959).

20705341 is an equidigital number, since it uses as much as digits as its factorization.

20705341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36958.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 20705341 is about 4550.3121870922. The cubic root of 20705341 is about 274.5959509866.

The spelling of 20705341 in words is "twenty million, seven hundred five thousand, three hundred forty-one".