20354841 has 16 divisors (see below), whose sum is σ = 32475520. Its totient is φ = 12525840.

The previous prime is 20354827. The next prime is 20354843. The reversal of 20354841 is 14845302.

It is not a de Polignac number, because 20354841 - 2¹¹ = 20352793 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20354843) 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 15 ways as a sum of consecutive naturals, for example, 28645 + ... + 29346.

It is an arithmetic number, because the mean of its divisors is an integer number (2029720).

Almost surely, 2^20354841 is an apocalyptic number.

It is an amenable number.

20354841 is a deficient number, since it is larger than the sum of its proper divisors (12120679).

20354841 is a wasteful number, since it uses less digits than its factorization.

20354841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58013 (or 58007 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 20354841 is about 4511.6339612163. The cubic root of 20354841 is about 273.0376714106.

The spelling of 20354841 in words is "twenty million, three hundred fifty-four thousand, eight hundred forty-one".